The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

When Jackie devises an offbeat plan of how to serve the customers at the diner, it's anything but smooth service; Dan begins to sell some furniture to make room for his new bride and her things.

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Monica is so perturbed by Chandler's instant attraction to her gorgeous visiting cousin (Denise Richards) that she persuades Ross to let her stay at his apartment; Ross finds his attraction to his cousin unsettling.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

Darlene worries about Mark making friends at his new school; Mark turns to Ben for personal advice; Becky finds herself thriving in college and starts thinking about her future plans.

When Jackie devises an offbeat plan of how to serve the customers at the diner, it's anything but smooth service; Dan begins to sell some furniture to make room for his new bride and her things.

Karen remembers what it feels like to be a school kid again when she takes up a new form of exercise.

An initially fun game of golf between Brent, Lacey and Hank quickly turns into a round robin of aggravation.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen remembers what it feels like to be a school kid again when she takes up a new form of exercise.

An initially fun game of golf between Brent, Lacey and Hank quickly turns into a round robin of aggravation.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen remembers what it feels like to be a school kid again when she takes up a new form of exercise.

An initially fun game of golf between Brent, Lacey and Hank quickly turns into a round robin of aggravation.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Louise starts to move into the Conners' home; Dan decides to sell the furniture set he bought for Roseanne when they were first married; Dan soon finds parting with the furniture harder than he thought it would be.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Monica is so perturbed by Chandler's instant attraction to her gorgeous visiting cousin (Denise Richards) that she persuades Ross to let her stay at his apartment; Ross finds his attraction to his cousin unsettling.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

Louise starts to move into the Conners' home; Dan decides to sell the furniture set he bought for Roseanne when they were first married; Dan soon finds parting with the furniture harder than he thought it would be.

Darlene brings Nick to the hardware store, where they run into Ben, who invites Nick to join him at The Lunch Box to watch a Bears game; Dan tries to spruce up the bedroom while Louise is out on the road; Jackie meets Logan's mom.

Lily and Marshall receive shocking news that has a profound impact on the gang; Ted begins his duties as best man for an old friend's wedding.

Afraid they will never get pregnant, Lily and Marshall decide to see a specialist; Robin begins her new job.

While on a trip to Minnesota, Ted and Barney try anything to make Marshall laugh; Marshall runs into an old nemesis from high school.

When Zoey's naive cousin (Katy Perry) visits, Barney makes a move on her; Ted comes to grips with his feelings for Zoey.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

Darlene brings Nick to the hardware store, where they run into Ben, who invites Nick to join him at The Lunch Box to watch a Bears game; Dan tries to spruce up the bedroom while Louise is out on the road; Jackie meets Logan's mom.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

Lily and Marshall receive shocking news that has a profound impact on the gang; Ted begins his duties as best man for an old friend's wedding.

Afraid they will never get pregnant, Lily and Marshall decide to see a specialist; Robin begins her new job.

While on a trip to Minnesota, Ted and Barney try anything to make Marshall laugh; Marshall runs into an old nemesis from high school.

When Zoey's naive cousin (Katy Perry) visits, Barney makes a move on her; Ted comes to grips with his feelings for Zoey.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Louise starts to move into the Conners' home; Dan decides to sell the furniture set he bought for Roseanne when they were first married; Dan soon finds parting with the furniture harder than he thought it would be.

Darlene brings Nick to the hardware store, where they run into Ben, who invites Nick to join him at The Lunch Box to watch a Bears game; Dan tries to spruce up the bedroom while Louise is out on the road; Jackie meets Logan's mom.

Karen and Davis investigate a mysterious crop circle near Dog River; Oscar and Emma repaint their house.

Wanda's latest crush gives her his number; Brent questions his sense of smell; the Ruby gets a touch up.

Emma and Karen look for a suitable gift to send their twin town in Japan; Wanda attempts to become the advice giving bartender.

Oscar is asked to be a school bus driver for the day; the kids may not be the only ones who need a lesson in good behavior.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Karen and Davis investigate a mysterious crop circle near Dog River; Oscar and Emma repaint their house.

Wanda's latest crush gives her his number; Brent questions his sense of smell; the Ruby gets a touch up.

Emma and Karen look for a suitable gift to send their twin town in Japan; Wanda attempts to become the advice giving bartender.

Oscar is asked to be a school bus driver for the day; the kids may not be the only ones who need a lesson in good behavior.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Karen and Davis investigate a mysterious crop circle near Dog River; Oscar and Emma repaint their house.

Wanda's latest crush gives her his number; Brent questions his sense of smell; the Ruby gets a touch up.

Emma and Karen look for a suitable gift to send their twin town in Japan; Wanda attempts to become the advice giving bartender.

Oscar is asked to be a school bus driver for the day; the kids may not be the only ones who need a lesson in good behavior.

The Conners celebrate Mark when he makes it on the dean's list at his new magnet school; Jackie continues to navigate her relationship with Neville.

Lily and Marshall receive shocking news that has a profound impact on the gang; Ted begins his duties as best man for an old friend's wedding.

Afraid they will never get pregnant, Lily and Marshall decide to see a specialist; Robin begins her new job.

While on a trip to Minnesota, Ted and Barney try anything to make Marshall laugh; Marshall runs into an old nemesis from high school.

When Zoey's naive cousin (Katy Perry) visits, Barney makes a move on her; Ted comes to grips with his feelings for Zoey.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.

The Conners celebrate Mark when he makes it on the dean's list at his new magnet school; Jackie continues to navigate her relationship with Neville.

Darlene continues to navigate her breakup with Ben; Dan offers to talk with Aldo's dad when he doesn't approve of Harris and Aldo's relationship.

Barney declares Feb. 13 a holiday for desperate women; Marshall receives a Valentine's Day surprise from Lily; Zoey and Ted work on figuring out their relationship.

Marshall becomes obsessed with saving the environment after seeing a documentary on garbage; Ted runs into The Captain; Barney admits he has feelings for a woman.

Barney's growing feelings for Nora make him worry about his heart; Robyn dates a man who acts like a dog.

Barney meets his father; the gang points out things each of them should know but never learned.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

In light of the negative news surrounding the state of the U.S.-Mexico relationship, Conan decides to strike a positive note by hosting a show in Mexico City with an all Mexican staff, crew, guests, and audience; guests Diego Luna and Vicente Fox.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Barney declares Feb. 13 a holiday for desperate women; Marshall receives a Valentine's Day surprise from Lily; Zoey and Ted work on figuring out their relationship.

Marshall becomes obsessed with saving the environment after seeing a documentary on garbage; Ted runs into The Captain; Barney admits he has feelings for a woman.

Barney's growing feelings for Nora make him worry about his heart; Robyn dates a man who acts like a dog.

Barney meets his father; the gang points out things each of them should know but never learned.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

The Conners celebrate Mark when he makes it on the dean's list at his new magnet school; Jackie continues to navigate her relationship with Neville.

Darlene continues to navigate her breakup with Ben; Dan offers to talk with Aldo's dad when he doesn't approve of Harris and Aldo's relationship.

Brent meets a new member of his extended family; Karen helps Wanda showcase her math skills; Ruby makes menu changes.

Oscar tries to catch a mouse; Brent and Hank invent a new game.

Lacey sets up an employee of the month program; Hank takes up a new hobby, and drives Emma crazy.

Hank believes he can run a gumball business, but Oscar lends his help and a hidden talent from Karen helps it succeed.

Brents finds a way to stop Oscar from saying the J-word, but discovers it might not have been so bad.

Hank and Davis lead the fight against a call center that might come to Dog River.

Sheldon is determined to convince Amy they should procreate; Koothrappali is reluctant to tell the gang what the new woman he's dating does for a living.

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old remote control Stephen Hawking action figure that he made.

Sheldon and Leonard disagree about how to divide their shared belongings; Koothrappali and Stuart fight to be the most helpful to Bernadette during her final weeks of pregnancy.

While Howard and Bernadette welcome their new baby into the world, Amy celebrates her own birthday with Sheldon.

Penny thinks Leonard is taking her for granted and decides to go on a spa weekend with Amy; Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby's room.

Sheldon tests an MIT invention after hearing it can help him read people's emotions; Leonard finds out Penny's brother is coming to town; Raj asks his ex-girlfriends to give him dating advice.

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system; Raj and Stuart look after baby Halley while Penny and Amy take Bernadette for a night out.

Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

Cut off from his father's fortune, Koothrappali appoints Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Sheldon is determined to convince Amy they should procreate; Koothrappali is reluctant to tell the gang what the new woman he's dating does for a living.

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old remote control Stephen Hawking action figure that he made.

Sheldon and Leonard disagree about how to divide their shared belongings; Koothrappali and Stuart fight to be the most helpful to Bernadette during her final weeks of pregnancy.

While Howard and Bernadette welcome their new baby into the world, Amy celebrates her own birthday with Sheldon.

Penny thinks Leonard is taking her for granted and decides to go on a spa weekend with Amy; Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby's room.

Sheldon tests an MIT invention after hearing it can help him read people's emotions; Leonard finds out Penny's brother is coming to town; Raj asks his ex-girlfriends to give him dating advice.

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system; Raj and Stuart look after baby Halley while Penny and Amy take Bernadette for a night out.

Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

Cut off from his father's fortune, Koothrappali appoints Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Sheldon is determined to convince Amy they should procreate; Koothrappali is reluctant to tell the gang what the new woman he's dating does for a living.

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old remote control Stephen Hawking action figure that he made.

Sheldon and Leonard disagree about how to divide their shared belongings; Koothrappali and Stuart fight to be the most helpful to Bernadette during her final weeks of pregnancy.

While Howard and Bernadette welcome their new baby into the world, Amy celebrates her own birthday with Sheldon.

Penny thinks Leonard is taking her for granted and decides to go on a spa weekend with Amy; Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby's room.

Sheldon tests an MIT invention after hearing it can help him read people's emotions; Leonard finds out Penny's brother is coming to town; Raj asks his ex-girlfriends to give him dating advice.

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system; Raj and Stuart look after baby Halley while Penny and Amy take Bernadette for a night out.

Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

Cut off from his father's fortune, Koothrappali appoints Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Lacey is suspicious of the illegal duplication of Dog River money; Hank gets a case of pink eye, causing Brent and Wanda to panic in Corner Gas; Karen is frustrated with Davis.

Emma goes Christmas shopping early making everyone curious to find out what they are getting.

Karen and Davis figure out a way to get Emma to do free cleaning.

Oscar and Emma discover an easy way to make some fast money; Davis decides to take off with Brent's car.

Lacey gets invited to join the Dog River Women's Club, but soon realises that it isn't right for her.

It's the eve of Brent's 40th birthday; to celebrate, the town has planned a midnight party complete with fireworks and a parade.

Rachel encounters a sorority sister (Winona Ryder) with whom she shared an embarrassing and passionate moment.

While writing their wedding vows, Monica and Chandler have trouble putting their true feelings on paper.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

The real father of Rachel's baby is revealed; Monica and Chandler struggle to make their honeymoon flight.

Ross and Rachel argue over how they ended up in bed together weeks earlier, so Ross announces he has the encounter on tape.

Ross is horrified when Rachel goes on a date with a soap-opera star (Johnny Messner); Phoebe is attracted to a clumsy chef whom Monica wants to fire.

At Monica's Halloween party, Phoebe meets her twin sister's fiance and finds that she is attracted to him.

Rachel wants to find her own apartment; Phoebe is ecstatic when Eric (Sean Penn) dumps Ursula to date her.

Rachel's father confronts Ross after she admits that she's pregnant with Ross' baby; Monica reconsiders Chandler's wish for a stripper.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Rachel encounters a sorority sister (Winona Ryder) with whom she shared an embarrassing and passionate moment.

While writing their wedding vows, Monica and Chandler have trouble putting their true feelings on paper.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

The real father of Rachel's baby is revealed; Monica and Chandler struggle to make their honeymoon flight.

Ross and Rachel argue over how they ended up in bed together weeks earlier, so Ross announces he has the encounter on tape.

Ross is horrified when Rachel goes on a date with a soap-opera star (Johnny Messner); Phoebe is attracted to a clumsy chef whom Monica wants to fire.

At Monica's Halloween party, Phoebe meets her twin sister's fiance and finds that she is attracted to him.

Rachel wants to find her own apartment; Phoebe is ecstatic when Eric (Sean Penn) dumps Ursula to date her.

Rachel's father confronts Ross after she admits that she's pregnant with Ross' baby; Monica reconsiders Chandler's wish for a stripper.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Rachel encounters a sorority sister (Winona Ryder) with whom she shared an embarrassing and passionate moment.

While writing their wedding vows, Monica and Chandler have trouble putting their true feelings on paper.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

The real father of Rachel's baby is revealed; Monica and Chandler struggle to make their honeymoon flight.

Ross and Rachel argue over how they ended up in bed together weeks earlier, so Ross announces he has the encounter on tape.

Ross is horrified when Rachel goes on a date with a soap-opera star (Johnny Messner); Phoebe is attracted to a clumsy chef whom Monica wants to fire.

At Monica's Halloween party, Phoebe meets her twin sister's fiance and finds that she is attracted to him.

Rachel wants to find her own apartment; Phoebe is ecstatic when Eric (Sean Penn) dumps Ursula to date her.

Rachel's father confronts Ross after she admits that she's pregnant with Ross' baby; Monica reconsiders Chandler's wish for a stripper.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Lacey is the unlikely champion of an eating contest; Emma enjoys the pleasures of an MP3 player.

Brent and Lacey sponsor Davis' football team; Karen's reckless driving puts Hank in the driver's seat.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Lacey is the unlikely champion of an eating contest; Emma enjoys the pleasures of an MP3 player.

Brent and Lacey sponsor Davis' football team; Karen's reckless driving puts Hank in the driver's seat.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he takes them to their destination.

Lacey is the unlikely champion of an eating contest; Emma enjoys the pleasures of an MP3 player.

Brent and Lacey sponsor Davis' football team; Karen's reckless driving puts Hank in the driver's seat.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

Mark returns to public school and finds it hard to fit in; Darlene isn't happy when she finds out what Mark's doing to make a little extra cash for college; Becky finds herself in an interesting situation with one of her college professors.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

The Just for Laughs Festival has been a staple of the Canadian comedy scene for more than 30 years. Now, the festival lends its famous name to this hidden-camera prank show starring a Quebec-based troupe. Canada is the stage and its inhabitants are the characters - some might say victims - for the "Candid Camera"-style pranks featured on the half-hour series. Although the pranks last just a few minutes each, that's just long enough to inflict embarrassment on the subjects of the pranks.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Mark returns to public school and finds it hard to fit in; Darlene isn't happy when she finds out what Mark's doing to make a little extra cash for college; Becky finds herself in an interesting situation with one of her college professors.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Sheldon campaigns to become Dr. Linkletter's lab assistant; Georgie enlists the help of Mr. Lundy, the drama teacher, for a surprising business venture.

Dr. Linkletter pushes Sheldon to make friends with his fellow students at college; Georgie gets a pager.

Sheldon, Dr. Linkletter and Meemaw team up on a science experiment; Mary is jealous that Pastor Jeff and Brenda are spending time together; Georgie has a new side hustle.

When Sheldon refuses to ride in a car after getting into an accident with Meemaw, Missy uses their trauma to her advantage at school; Meemaw is forced to take the church shuttle while her car is in the shop.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

Following burgeoning content creator Jasmeet Dutta as he tries to balance his ambitions for success with his commitment to his family, community, and culture.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Following burgeoning content creator Jasmeet Dutta as he tries to balance his ambitions for success with his commitment to his family, community, and culture.

Sheldon campaigns to become Dr. Linkletter's lab assistant; Georgie enlists the help of Mr. Lundy, the drama teacher, for a surprising business venture.

Dr. Linkletter pushes Sheldon to make friends with his fellow students at college; Georgie gets a pager.

Sheldon, Dr. Linkletter and Meemaw team up on a science experiment; Mary is jealous that Pastor Jeff and Brenda are spending time together; Georgie has a new side hustle.

When Sheldon refuses to ride in a car after getting into an accident with Meemaw, Missy uses their trauma to her advantage at school; Meemaw is forced to take the church shuttle while her car is in the shop.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

Following burgeoning content creator Jasmeet Dutta as he tries to balance his ambitions for success with his commitment to his family, community, and culture.

Mark returns to public school and finds it hard to fit in; Darlene isn't happy when she finds out what Mark's doing to make a little extra cash for college; Becky finds herself in an interesting situation with one of her college professors.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Brent offers self-serve; Lacey goes buffet style at the Ruby.

The air conditioner breaks at Corner Gas; Karen and Davis win the meat lottery.

The locals are confused about Wanda's PhD; Lacey gets mistaken for a cool adult by teens; Oscar finds something sinister about Davis and Karen.

Davis forgets Karen's birthday and rallies the gang to help him throw together a last-minute party with some unfortunate results; Oscar reckons with the fact that he's terrible at giving gifts.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent offers self-serve; Lacey goes buffet style at the Ruby.

The air conditioner breaks at Corner Gas; Karen and Davis win the meat lottery.

The locals are confused about Wanda's PhD; Lacey gets mistaken for a cool adult by teens; Oscar finds something sinister about Davis and Karen.

Davis forgets Karen's birthday and rallies the gang to help him throw together a last-minute party with some unfortunate results; Oscar reckons with the fact that he's terrible at giving gifts.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent offers self-serve; Lacey goes buffet style at the Ruby.

The air conditioner breaks at Corner Gas; Karen and Davis win the meat lottery.

The locals are confused about Wanda's PhD; Lacey gets mistaken for a cool adult by teens; Oscar finds something sinister about Davis and Karen.

Davis forgets Karen's birthday and rallies the gang to help him throw together a last-minute party with some unfortunate results; Oscar reckons with the fact that he's terrible at giving gifts.

The family is locked down at home due to a shooting incident in the neighborhood.

Sheldon campaigns to become Dr. Linkletter's lab assistant; Georgie enlists the help of Mr. Lundy, the drama teacher, for a surprising business venture.

Dr. Linkletter pushes Sheldon to make friends with his fellow students at college; Georgie gets a pager.

Sheldon, Dr. Linkletter and Meemaw team up on a science experiment; Mary is jealous that Pastor Jeff and Brenda are spending time together; Georgie has a new side hustle.

When Sheldon refuses to ride in a car after getting into an accident with Meemaw, Missy uses their trauma to her advantage at school; Meemaw is forced to take the church shuttle while her car is in the shop.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Chandler is aghast when Monica buys expensive boots; Phoebe discovers that Ross' son attends school with Sting's son.

Ross' new girlfriend wants to put their photograph on Christmas cards; Rachel eyes Joey as a possible partner.

Georgie panics when he learns that Jim is considering selling the tire store to his rival; Mandy's forced to confront a long-running lie.

Tensions rise when Georgie finds out the truth about Mandy's boss; Georgie does all he can to buy the tire store before Jim sells it.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Chandler is aghast when Monica buys expensive boots; Phoebe discovers that Ross' son attends school with Sting's son.

Ross' new girlfriend wants to put their photograph on Christmas cards; Rachel eyes Joey as a possible partner.

Georgie panics when he learns that Jim is considering selling the tire store to his rival; Mandy's forced to confront a long-running lie.

Tensions rise when Georgie finds out the truth about Mandy's boss; Georgie does all he can to buy the tire store before Jim sells it.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Karen's reputation as a woman of the law is marred when an accidental muffin incident causes chaos for the team.

Oscar and Emma enjoy Lacey's company in their new hot tub a lot more than Lacey enjoys theirs; the police department introduces Safety Pete.

Brent gets his own private VIP section at the bar; Hank loses his keys and enlists Lacey's help to retrace his steps; Wanda attempts to retrain Davis's memory.

Davis accidentally totals the police cruiser and tries to cover it up; Hank and Wanda are tasked with making Dog River rat free; Emma struggles to get Oscar on board with spring cleaning.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen's reputation as a woman of the law is marred when an accidental muffin incident causes chaos for the team.

Oscar and Emma enjoy Lacey's company in their new hot tub a lot more than Lacey enjoys theirs; the police department introduces Safety Pete.

Brent gets his own private VIP section at the bar; Hank loses his keys and enlists Lacey's help to retrace his steps; Wanda attempts to retrain Davis's memory.

Davis accidentally totals the police cruiser and tries to cover it up; Hank and Wanda are tasked with making Dog River rat free; Emma struggles to get Oscar on board with spring cleaning.

Unassuming people enter a taxi cab as passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The driver/host,Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen's reputation as a woman of the law is marred when an accidental muffin incident causes chaos for the team.

Oscar and Emma enjoy Lacey's company in their new hot tub a lot more than Lacey enjoys theirs; the police department introduces Safety Pete.

Brent gets his own private VIP section at the bar; Hank loses his keys and enlists Lacey's help to retrace his steps; Wanda attempts to retrain Davis's memory.

Davis accidentally totals the police cruiser and tries to cover it up; Hank and Wanda are tasked with making Dog River rat free; Emma struggles to get Oscar on board with spring cleaning.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Chandler is aghast when Monica buys expensive boots; Phoebe discovers that Ross' son attends school with Sting's son.

Ross' new girlfriend wants to put their photograph on Christmas cards; Rachel eyes Joey as a possible partner.

Georgie panics when he learns that Jim is considering selling the tire store to his rival; Mandy's forced to confront a long-running lie.

Tensions rise when Georgie finds out the truth about Mandy's boss; Georgie does all he can to buy the tire store before Jim sells it.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Wanda becomes a reporter for the Howler; Brent takes guitar lessons.

Brent tries to prove he is the biggest Saskatchewan Roughriders fan.

Brent and Hank are disappointed to find that their favorite wrestler has become a gardener.

Lacey plans a parade for Dog River Days with all the fixings; Wanda uses a mascot to convince a corporate sponsor to support the cause; Hank battles Emma for the beauty pageant crown.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Wanda becomes a reporter for the Howler; Brent takes guitar lessons.

Brent tries to prove he is the biggest Saskatchewan Roughriders fan.

Brent and Hank are disappointed to find that their favorite wrestler has become a gardener.

Lacey plans a parade for Dog River Days with all the fixings; Wanda uses a mascot to convince a corporate sponsor to support the cause; Hank battles Emma for the beauty pageant crown.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Wanda becomes a reporter for the Howler; Brent takes guitar lessons.

Brent tries to prove he is the biggest Saskatchewan Roughriders fan.

Brent and Hank are disappointed to find that their favorite wrestler has become a gardener.

Lacey plans a parade for Dog River Days with all the fixings; Wanda uses a mascot to convince a corporate sponsor to support the cause; Hank battles Emma for the beauty pageant crown.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Marshall quits his job at Goliath National Bank to volunteer at an environmental organization; Ted and Zooey continue to butt heads over the future of the Arcadia.

Barney tries to make his life seem more exciting as he bonds with his father (John Lithgow); Robin encounters a guy she likes.

Lily and Robin try to force Barney and Marshall to make amends after an argument; Ted plans a weekend away with Zoey.

When Ted must make a decision that could affect his relationship, his friends share their real opinions of Zoey.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Marshall quits his job at Goliath National Bank to volunteer at an environmental organization; Ted and Zooey continue to butt heads over the future of the Arcadia.

Barney tries to make his life seem more exciting as he bonds with his father (John Lithgow); Robin encounters a guy she likes.

Lily and Robin try to force Barney and Marshall to make amends after an argument; Ted plans a weekend away with Zoey.

When Ted must make a decision that could affect his relationship, his friends share their real opinions of Zoey.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be shocked when they discover that they're instant contestants. The host, Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

Marshall quits his job at Goliath National Bank to volunteer at an environmental organization; Ted and Zooey continue to butt heads over the future of the Arcadia.

Barney tries to make his life seem more exciting as he bonds with his father (John Lithgow); Robin encounters a guy she likes.

Lily and Robin try to force Barney and Marshall to make amends after an argument; Ted plans a weekend away with Zoey.

When Ted must make a decision that could affect his relationship, his friends share their real opinions of Zoey.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Barney and Robin bond while intervening in Ted's relationship; Marshall fears an impending bout of food poisoning; Ted acts as best man in an important wedding.

Barney and Ted reminisce about Punchy's wedding; Robin considers confessing her feelings.

Marshall worries videos he made in the past will put his dream job in jeopardy; Ted must choose a date for the architects ball.

Ted tries to make amends when he runs into an ex-girlfriend with whom he was unfaithful; Barney makes a bet with Marshall and Lily.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Conan travels to Tel Aviv, Jerusalem and other locales in Israel, talking about the separation barrier in the West Bank and war in Syria.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

Barney and Robin bond while intervening in Ted's relationship; Marshall fears an impending bout of food poisoning; Ted acts as best man in an important wedding.

Barney and Ted reminisce about Punchy's wedding; Robin considers confessing her feelings.

Marshall worries videos he made in the past will put his dream job in jeopardy; Ted must choose a date for the architects ball.

Ted tries to make amends when he runs into an ex-girlfriend with whom he was unfaithful; Barney makes a bet with Marshall and Lily.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Brent finds a creative way to get through a week of no TV with the help of Hank and Wanda.

Wanda's new way of getting around town brings a European flair to Dog River; Hank's new greeting puts him in an awkward situation with Emma.

Brent and Hank take a trip down memory lane by stealing crab apples from a neighbor's yard; no one wants Oscar on their charades team; Davis and Wanda discover he benefits of complaining.

David tries to buy the original R2-D2 after Hank buys a robot online.

Emma causes tension at the elementary school after a teacher leaves her in charge.

As a windstorm creates havoc, Lacey's sign on her rooftop begins to lose all of the letters one by one.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan - everyone except the bride and groom.

Sheldon and Amy's honeymoon runs aground in New York; Penny and Leonard discover they are uncomfortably similar to Amy's parents; Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war.

Sheldon and Amy go crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding; Koothrappali decides to settle down and asks his father to arrange a marriage for him.

Life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family; Koothrappali explores an arranged marriage.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.