Jackie and Becky pitch their business plan to Darlene in hopes of getting the Lunch Box back, but Darlene's decision leads to hostility; Dan bans Odessa from the house, causing a rift with Harris; Mark makes extensive Thanksgiving plans.

Bernadette gets her Ph.D., inspiring the guys to tease Wolowitz about his lack of a doctorate; Raj becomes Sheldon's roommate.

Penny worries that she has ruined her relationship with her friends; Sheldon takes over the paintball team.

Amy is caught in the middle when Penny and Sheldon get into an argument over a pre-owned chair; Leonard tries to make his long-distance relationship more exciting.

When Professor Proton asks Leonard for help with an experiment, Sheldon retaliates by befriending Proton's rival, Bill Nye.

The gang spends a weekend at a beach house; in search of her father, Phoebe meets a family friend (Teri Garr) with links to her family's past.

Ross is dating Rachel again but hates what he had to do to get her back; Phoebe and her birth mother (Teri Garr) reconnect; Monica is stung by a jellyfish and has to resort to drastic measures to relieve the pain.

Phoebe finds meaning in the appearance of a stray cat; Joey and Chandler agree to sell some furniture.

Rachel's boss, Joanna, leaves Chandler in an awkward situation that will require Rachel's help; Monica's catering fiasco.

When Professor Proton asks Leonard for help with an experiment, Sheldon retaliates by befriending Proton's rival, Bill Nye.

When a mistake comes to light, Sheldon makes Leonard walk a mile in his shoes; Penny decides to confront Raj's ex.

Halloween brings nothing but horror for Jackie after she uncovers a shocking secret when trying to reopen the Lunch Box; Mary gets upset when a woman assumes she is adopted; Darlene continues to deal with her complicated love life.

Jackie and Becky pitch their business plan to Darlene in hopes of getting the Lunch Box back, but Darlene's decision leads to hostility; Dan bans Odessa from the house, causing a rift with Harris; Mark makes extensive Thanksgiving plans.

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.

Brent and Wanda help Lacey overcome her fears so she can go skydiving; Hank becomes the town messenger; Oscar and Emma go to war with Karen and Davis over a prime potato planting locale.

Wanda, Lacey, and Karen team up to fix The Ruby's broken toaster; Emma and Oscar have an impression-off; Davis is excited when he discovers Hank owns a valuable action figure.

Unassuming people enter the "Cash Cab" as passengers expecting a normal taxi ride, only to discover they're instant contestants on Discovery Channel's innovative science-themed game show.

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.

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.

Brent and Wanda help Lacey overcome her fears so she can go skydiving; Hank becomes the town messenger; Oscar and Emma go to war with Karen and Davis over a prime potato planting locale.

Wanda, Lacey, and Karen team up to fix The Ruby's broken toaster; Emma and Oscar have an impression-off; Davis is excited when he discovers Hank owns a valuable action figure.

Unassuming people enter the "Cash Cab" as passengers expecting a normal taxi ride, only to discover they're instant contestants on Discovery Channel's innovative science-themed game show.

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.

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.

Brent and Wanda help Lacey overcome her fears so she can go skydiving; Hank becomes the town messenger; Oscar and Emma go to war with Karen and Davis over a prime potato planting locale.

Wanda, Lacey, and Karen team up to fix The Ruby's broken toaster; Emma and Oscar have an impression-off; Davis is excited when he discovers Hank owns a valuable action figure.

Chaos ensues when Dan finally gets the entire family together for Thanksgiving dinner; mixed feelings about the Lunch Box continue to build tension in the house; Harris makes an unexpected move.

The gang spends a weekend at a beach house; in search of her father, Phoebe meets a family friend (Teri Garr) with links to her family's past.

Ross is dating Rachel again but hates what he had to do to get her back; Phoebe and her birth mother (Teri Garr) reconnect; Monica is stung by a jellyfish and has to resort to drastic measures to relieve the pain.

Phoebe finds meaning in the appearance of a stray cat; Joey and Chandler agree to sell some furniture.

Rachel's boss, Joanna, leaves Chandler in an awkward situation that will require Rachel's help; Monica's catering fiasco.

Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.

Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.

Chaos ensues when Dan finally gets the entire family together for Thanksgiving dinner; mixed feelings about the Lunch Box continue to build tension in the house; Harris makes an unexpected move.

Jackie is faced with a difficult decision that brings the family and community together; Becky starts working a new late-night shift at Casita Bonita; Darlene goes to extreme measures to mend her relationship with Harris.

Lily and Marshall come on too strong to impress Robin and Barney, who then try to break off the double-dating.

Barney wants Robin to become an American citizen; Lily joins Marshall and Ted on their road trip.

Barney's know-it-all attitude gets him in hot water with Robin; Marshall and Lily offer relationship advice.

When Robin and Barney hit a rough patch in their relationship, Lily tries to break them up.

Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.

When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.

Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard for a week.

Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.

Jackie is faced with a difficult decision that brings the family and community together; Becky starts working a new late-night shift at Casita Bonita; Darlene goes to extreme measures to mend her relationship with Harris.

Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.

Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.

When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.

Lily and Marshall come on too strong to impress Robin and Barney, who then try to break off the double-dating.

Barney wants Robin to become an American citizen; Lily joins Marshall and Ted on their road trip.

Barney's know-it-all attitude gets him in hot water with Robin; Marshall and Lily offer relationship advice.

When Robin and Barney hit a rough patch in their relationship, Lily tries to break them up.

When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.

Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard for a week.

Chaos ensues when Dan finally gets the entire family together for Thanksgiving dinner; mixed feelings about the Lunch Box continue to build tension in the house; Harris makes an unexpected move.

Jackie is faced with a difficult decision that brings the family and community together; Becky starts working a new late-night shift at Casita Bonita; Darlene goes to extreme measures to mend her relationship with Harris.

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.

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.

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.

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.

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.

Dan is disappointed when everyone but Becky forgets about his birthday; Darlene faces another issue; Dan excludes Jackie from the family Christmas Santa photo for mistreating Louise.

Lily and Marshall come on too strong to impress Robin and Barney, who then try to break off the double-dating.

Barney wants Robin to become an American citizen; Lily joins Marshall and Ted on their road trip.

Barney's know-it-all attitude gets him in hot water with Robin; Marshall and Lily offer relationship advice.

When Robin and Barney hit a rough patch in their relationship, Lily tries to break them up.

Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his friends.

Amy is devastated when Penny and Bernadette shop for wedding dresses without her.

Dan is disappointed when everyone but Becky forgets about his birthday; Darlene faces another issue; Dan excludes Jackie from the family Christmas Santa photo for mistreating Louise.

The Conners struggle to accept Becky's new boyfriend, a Green Bay Packers fan; Dan tries to impress upon Mark the importance of the family's die-hard loyalty to the Bears; Ben and Darlene try to get a loan for their new magazine.

After breaking up with Robin, Barney pulls out all of his greatest tricks to get back into the dating scene.

Marshall bequeaths a "slap bet" slap to Ted and Robin; Lily's estranged father (Chris Elliott) visits for Thanksgiving.

The gang tries to help Ted when the perfect woman (Joanna Garcia) becomes available; Marshall finds a letter written by his younger self.

The gang struggles to quit smoking; Robin clashes with a new, jaded co-worker.

Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his friends.

As Leonard tries to help Penny with a disappointment, Penny asks him a bold question about their relationship; Sheldon wants to learn how to be funny.

Sheldon must learn how to relax when he is forced to take a vacation; Leonard tries to support Penny when she quits her job; Bernadette needs to replace one of Stuart's comic books.

Conan O'Brien becomes the first American late-night host to do a show from Armenia.

Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his friends.

Amy is devastated when Penny and Bernadette shop for wedding dresses without her.

As Leonard tries to help Penny with a disappointment, Penny asks him a bold question about their relationship; Sheldon wants to learn how to be funny.

After breaking up with Robin, Barney pulls out all of his greatest tricks to get back into the dating scene.

Marshall bequeaths a "slap bet" slap to Ted and Robin; Lily's estranged father (Chris Elliott) visits for Thanksgiving.

The gang tries to help Ted when the perfect woman (Joanna Garcia) becomes available; Marshall finds a letter written by his younger self.

The gang struggles to quit smoking; Robin clashes with a new, jaded co-worker.

As Leonard tries to help Penny with a disappointment, Penny asks him a bold question about their relationship; Sheldon wants to learn how to be funny.

Sheldon must learn how to relax when he is forced to take a vacation; Leonard tries to support Penny when she quits her job; Bernadette needs to replace one of Stuart's comic books.

Dan is disappointed when everyone but Becky forgets about his birthday; Darlene faces another issue; Dan excludes Jackie from the family Christmas Santa photo for mistreating Louise.

The Conners struggle to accept Becky's new boyfriend, a Green Bay Packers fan; Dan tries to impress upon Mark the importance of the family's die-hard loyalty to the Bears; Ben and Darlene try to get a loan for their new magazine.

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.

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.

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.

Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.

Sheldon is jealous when Stuart (Kevin Sussman), a guy from the comic book store, asks Amy out on a date.

Leonard must face the bully who targeted him in high school; Penny confronts her past actions.

Amy is upset with Sheldon when he isn't impressed with her recent accomplishment; Howard struggles with Bernadette's aversion to children.

Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

Sheldon goes to work with Amy in her lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

Sheldon and his nemesis, Kripke (John Ross Bowie), compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

Sheldon plans a video game marathon with the guys instead of attending a birthday party for Amy's aunt.

When Penny buys Leonard and Sheldon "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.

Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.

Sheldon is jealous when Stuart (Kevin Sussman), a guy from the comic book store, asks Amy out on a date.

Leonard must face the bully who targeted him in high school; Penny confronts her past actions.

Amy is upset with Sheldon when he isn't impressed with her recent accomplishment; Howard struggles with Bernadette's aversion to children.

Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

Sheldon goes to work with Amy in her lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

Sheldon and his nemesis, Kripke (John Ross Bowie), compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

Sheldon plans a video game marathon with the guys instead of attending a birthday party for Amy's aunt.

When Penny buys Leonard and Sheldon "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.

Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.

Sheldon is jealous when Stuart (Kevin Sussman), a guy from the comic book store, asks Amy out on a date.

Leonard must face the bully who targeted him in high school; Penny confronts her past actions.

Amy is upset with Sheldon when he isn't impressed with her recent accomplishment; Howard struggles with Bernadette's aversion to children.

Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

Sheldon goes to work with Amy in her lab when the university forces him to take a vacation; Bernadette asks Howard to sign a pre-nup.

Sheldon and his nemesis, Kripke (John Ross Bowie), compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

Sheldon plans a video game marathon with the guys instead of attending a birthday party for Amy's aunt.

When Penny buys Leonard and Sheldon "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.

Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

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.

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

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

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.

Joey intervenes when the superintendent, Mr. Treeger, moves to evict Rachel and Monica; Chandler tries to quit a health club.

Chandler falls for a woman who is already involved with Joey; Rachel and Ross play the jealousy game.

Ross starts dating a beautiful but messy co-worker from the museum; Monica and Phoebe cater a sad event.

Chandler faces a tough choice after his passionate kiss with Joey's girlfriend; Rachel has to learn about dining alone.

To atone for kissing Joey's girlfriend, Chandler agrees to stay inside a shipping crate during the Thanksgiving holiday.

Rachel's career is obstructed by her boss, Joanna; Monica faces a big decision; Chandler, Ross and Joey party.

Ross struggles to maintain a long-distance relationship; Chandler's well-intended attempts to get Rachel a date seem to miss the mark; Monica's plan to assert some authority at her new restaurant goes awry.

Phoebe's brother (Giovanni Ribisi) asks her to carry a baby for him and his wife; Chandler gets lessons in love; Joey finds himself in a class struggle.

Phoebe undergoes an embryo implant procedure to become a surrogate mother for her brother (Giovanni Ribisi) and his wife (Debra Jo Rupp); Monica and Rachel wager their apartment in a trivia game against Chandler and Joey.

Rachel's setback at work leads to a new romantic interest; Chandler is jealous of Kathy's onstage co-star.

A visit to a strip joint fails to cheer up Chandler; Rachel gets Ross to go to an opera; Charlton Heston finds Joey in a compromising position during a movie shoot.

Ross takes up rugby to impress Emily (Helen Baxendale); Chandler sets up a ruse to avoid his former girlfriend Janice (Maggie Wheeler).

Rachel throws a surprise party for Emily so she can invite Joshua; Phoebe develops a craving for meat.

Ross tells Emily (Helen Baxendale) how he feels about her; Chandler and Joey suddenly receive a free adult TV channel in their apartment; Phoebe gets some surprising news about her pregnancy.

Joey intervenes when the superintendent, Mr. Treeger, moves to evict Rachel and Monica; Chandler tries to quit a health club.

Chandler falls for a woman who is already involved with Joey; Rachel and Ross play the jealousy game.

Ross starts dating a beautiful but messy co-worker from the museum; Monica and Phoebe cater a sad event.

Chandler faces a tough choice after his passionate kiss with Joey's girlfriend; Rachel has to learn about dining alone.

To atone for kissing Joey's girlfriend, Chandler agrees to stay inside a shipping crate during the Thanksgiving holiday.

Rachel's career is obstructed by her boss, Joanna; Monica faces a big decision; Chandler, Ross and Joey party.

Ross struggles to maintain a long-distance relationship; Chandler's well-intended attempts to get Rachel a date seem to miss the mark; Monica's plan to assert some authority at her new restaurant goes awry.

Phoebe's brother (Giovanni Ribisi) asks her to carry a baby for him and his wife; Chandler gets lessons in love; Joey finds himself in a class struggle.

Phoebe undergoes an embryo implant procedure to become a surrogate mother for her brother (Giovanni Ribisi) and his wife (Debra Jo Rupp); Monica and Rachel wager their apartment in a trivia game against Chandler and Joey.

Rachel's setback at work leads to a new romantic interest; Chandler is jealous of Kathy's onstage co-star.

A visit to a strip joint fails to cheer up Chandler; Rachel gets Ross to go to an opera; Charlton Heston finds Joey in a compromising position during a movie shoot.

Ross takes up rugby to impress Emily (Helen Baxendale); Chandler sets up a ruse to avoid his former girlfriend Janice (Maggie Wheeler).

Rachel throws a surprise party for Emily so she can invite Joshua; Phoebe develops a craving for meat.

Ross tells Emily (Helen Baxendale) how he feels about her; Chandler and Joey suddenly receive a free adult TV channel in their apartment; Phoebe gets some surprising news about her pregnancy.

Joey intervenes when the superintendent, Mr. Treeger, moves to evict Rachel and Monica; Chandler tries to quit a health club.

Chandler falls for a woman who is already involved with Joey; Rachel and Ross play the jealousy game.

Ross starts dating a beautiful but messy co-worker from the museum; Monica and Phoebe cater a sad event.

Chandler faces a tough choice after his passionate kiss with Joey's girlfriend; Rachel has to learn about dining alone.

To atone for kissing Joey's girlfriend, Chandler agrees to stay inside a shipping crate during the Thanksgiving holiday.

Rachel's career is obstructed by her boss, Joanna; Monica faces a big decision; Chandler, Ross and Joey party.

Ross struggles to maintain a long-distance relationship; Chandler's well-intended attempts to get Rachel a date seem to miss the mark; Monica's plan to assert some authority at her new restaurant goes awry.

Phoebe's brother (Giovanni Ribisi) asks her to carry a baby for him and his wife; Chandler gets lessons in love; Joey finds himself in a class struggle.

Phoebe undergoes an embryo implant procedure to become a surrogate mother for her brother (Giovanni Ribisi) and his wife (Debra Jo Rupp); Monica and Rachel wager their apartment in a trivia game against Chandler and Joey.

Rachel's setback at work leads to a new romantic interest; Chandler is jealous of Kathy's onstage co-star.

A visit to a strip joint fails to cheer up Chandler; Rachel gets Ross to go to an opera; Charlton Heston finds Joey in a compromising position during a movie shoot.

Ross takes up rugby to impress Emily (Helen Baxendale); Chandler sets up a ruse to avoid his former girlfriend Janice (Maggie Wheeler).

Rachel throws a surprise party for Emily so she can invite Joshua; Phoebe develops a craving for meat.

Ross tells Emily (Helen Baxendale) how he feels about her; Chandler and Joey suddenly receive a free adult TV channel in their apartment; Phoebe gets some surprising news about her pregnancy.

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.

Oscar's convinced there's a venomous cobra in his backyard; Hank discovers an intriguing bird's nest and sets up a livestream so everyone in town can watch the eggs hatch.

Brent discovers his parents put money aside for him, but Oscar's forgotten where it is; Karen and Davis are hurt to learn how often people lie to the police and enlist Wanda as their lie detector.

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.

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.

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.

Oscar's convinced there's a venomous cobra in his backyard; Hank discovers an intriguing bird's nest and sets up a livestream so everyone in town can watch the eggs hatch.

Brent discovers his parents put money aside for him, but Oscar's forgotten where it is; Karen and Davis are hurt to learn how often people lie to the police and enlist Wanda as their lie detector.

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.

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.

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.

Oscar's convinced there's a venomous cobra in his backyard; Hank discovers an intriguing bird's nest and sets up a livestream so everyone in town can watch the eggs hatch.

Brent discovers his parents put money aside for him, but Oscar's forgotten where it is; Karen and Davis are hurt to learn how often people lie to the police and enlist Wanda as their lie detector.

Becky thinks that Jackie's new friend, a restaurant supplier, is taking advantage of them; Darlene is thrilled when Harris gets into Central Illinois State, but Harris might have found a better offer; Dan finds himself in an embarrassing situation.

After James fails to answer a call during a family crisis, he and Astrid find themselves at a boiling point with a growing list of frustrations toward one another.

With a move out of the city and their home of a decade looming, Astrid and James look back on when they first moved in; with Astrid set to give birth to her first child, her mother and sister do not see eye to eye on Astrid's birth plan.

With potential buyers coming to look at their house sooner than they expected, Astrid and James try to rally the kids to clean and get out to the park before their open house begins, but their daughter Viv takes a vow to not ever leave their home.

Astrid and James are forced to examine their differing parenting approaches to dealing with their daughter's behavior issues.

Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

The gang tries to help Wolowitz and Bernadette get married before the space launch.

Raj faces his loneliness when his friends are out on dates; while in space, Wolowitz gets drawn into a fight between Bernadette and his mom.

Becky thinks that Jackie's new friend, a restaurant supplier, is taking advantage of them; Darlene is thrilled when Harris gets into Central Illinois State, but Harris might have found a better offer; Dan finds himself in an embarrassing situation.

Dan avoids coping with a death in the family, only to be confronted by it head-on; Ben and Darlene address Ben's baby fever; Dwight gets the jitters when he has to fill in for the chef who suffers an accident.

Meemaw meets Dale's ex-wife, June; Sheldon is forced to work on a group project with reluctant college students.

Sheldon visits the California Institute of Technology for the very first time; Georgie is furious when Mary listens in on a phone call with his girlfriend; Meemaw tries to cheer up a jealous Missy.

Dr. Sturgis is furious when Sheldon accuses him of plagiarism; Mary sets out to find a "girl trophy" for Missy's end-of-season baseball ceremony; Georgie has an awkward run-in with Veronica while on a date with his new girlfriend, Jana.

When George Sr. accidentally lands the school librarian in the hospital, the Cooper family must nurse her back to health; Meemaw gives Georgie relationship advice.

Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

The gang tries to help Wolowitz and Bernadette get married before the space launch.

Unable to get Comic-Con tickets, Sheldon tries to hold his own convention and ends up spending a wild evening with James Earl Jones; the ladies try to act maturely.

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

Raj faces his loneliness when his friends are out on dates; while in space, Wolowitz gets drawn into a fight between Bernadette and his mom.

Dan avoids coping with a death in the family, only to be confronted by it head-on; Ben and Darlene address Ben's baby fever; Dwight gets the jitters when he has to fill in for the chef who suffers an accident.

Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

The gang tries to help Wolowitz and Bernadette get married before the space launch.

Raj faces his loneliness when his friends are out on dates; while in space, Wolowitz gets drawn into a fight between Bernadette and his mom.

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

Meemaw meets Dale's ex-wife, June; Sheldon is forced to work on a group project with reluctant college students.

Sheldon visits the California Institute of Technology for the very first time; Georgie is furious when Mary listens in on a phone call with his girlfriend; Meemaw tries to cheer up a jealous Missy.

Dr. Sturgis is furious when Sheldon accuses him of plagiarism; Mary sets out to find a "girl trophy" for Missy's end-of-season baseball ceremony; Georgie has an awkward run-in with Veronica while on a date with his new girlfriend, Jana.

Unable to get Comic-Con tickets, Sheldon tries to hold his own convention and ends up spending a wild evening with James Earl Jones; the ladies try to act maturely.

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

Becky thinks that Jackie's new friend, a restaurant supplier, is taking advantage of them; Darlene is thrilled when Harris gets into Central Illinois State, but Harris might have found a better offer; Dan finds himself in an embarrassing situation.

Dan avoids coping with a death in the family, only to be confronted by it head-on; Ben and Darlene address Ben's baby fever; Dwight gets the jitters when he has to fill in for the chef who suffers an accident.

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.

Karen, Wanda, and Lacey struggle to get noticed on a dating app; Oscar, Emma, and Hank try to figure out who purchased the abandoned lot in town.

Brent and Karen go to war over the antiquated laws in Dog River; Hank and Emma track down Oscar's prize quarter.

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.

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.

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.

Karen, Wanda, and Lacey struggle to get noticed on a dating app; Oscar, Emma, and Hank try to figure out who purchased the abandoned lot in town.

Brent and Karen go to war over the antiquated laws in Dog River; Hank and Emma track down Oscar's prize quarter.

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.

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.

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.

Karen, Wanda, and Lacey struggle to get noticed on a dating app; Oscar, Emma, and Hank try to figure out who purchased the abandoned lot in town.

Brent and Karen go to war over the antiquated laws in Dog River; Hank and Emma track down Oscar's prize quarter.

Dan starts to bond with his younger half brother, but he can't get over the fact that their father paid for Ed Jr.'s college education, something he refused to do for Dan; Jackie hits it off with a fun married couple.

Meemaw meets Dale's ex-wife, June; Sheldon is forced to work on a group project with reluctant college students.

Sheldon visits the California Institute of Technology for the very first time; Georgie is furious when Mary listens in on a phone call with his girlfriend; Meemaw tries to cheer up a jealous Missy.

Dr. Sturgis is furious when Sheldon accuses him of plagiarism; Mary sets out to find a "girl trophy" for Missy's end-of-season baseball ceremony; Georgie has an awkward run-in with Veronica while on a date with his new girlfriend, Jana.

When George Sr. accidentally lands the school librarian in the hospital, the Cooper family must nurse her back to health; Meemaw gives Georgie relationship advice.

Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on.

Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

Wolowitz's return from space isn't all he expected; game night becomes a gender war.

Dan starts to bond with his younger half brother, but he can't get over the fact that their father paid for Ed Jr.'s college education, something he refused to do for Dan; Jackie hits it off with a fun married couple.

Darlene, desperate for money, gets a job at Price Warehouse; Jackie decides to take her "thrupple" relationship with Ron and Janelle to the next level; Ben shaves his beard in an attempt to appear more clean-cut to potential advertisers.

Ross has concerns about Emily's interests; Rachel's plans for Joshua are upset by a late change of venue.

Ross tries to keep Emily from returning to London; Monica and Rachel attempt to win back their apartment.

"Georgie & Mandy's First Marriage" is an American sitcom TV series, the third TV series in "The Big Bang Theory" franchise and a direct sequel to and spin-off of the coming-of-age sitcom "Young Sheldon." The series focuses on the marriage of young parents Georgie Cooper and Mandy McAllister.

Monica and Phoebe find life in wedding attire has its charm; Rachel asks Joshua for more spontaneity.

Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on.

Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.

When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life; Bernadette is torn when Wolowitz gets the chance to go back to space.

Wolowitz's return from space isn't all he expected; game night becomes a gender war.

Darlene, desperate for money, gets a job at Price Warehouse; Jackie decides to take her "thrupple" relationship with Ron and Janelle to the next level; Ben shaves his beard in an attempt to appear more clean-cut to potential advertisers.

Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on.

Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

Wolowitz's return from space isn't all he expected; game night becomes a gender war.

Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.

Ross has concerns about Emily's interests; Rachel's plans for Joshua are upset by a late change of venue.

Ross tries to keep Emily from returning to London; Monica and Rachel attempt to win back their apartment.

Georgie's attempt to break up Missy and her new boyfriend backfires.

Monica and Phoebe find life in wedding attire has its charm; Rachel asks Joshua for more spontaneity.

Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.

When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life; Bernadette is torn when Wolowitz gets the chance to go back to space.

Dan starts to bond with his younger half brother, but he can't get over the fact that their father paid for Ed Jr.'s college education, something he refused to do for Dan; Jackie hits it off with a fun married couple.

Darlene, desperate for money, gets a job at Price Warehouse; Jackie decides to take her "thrupple" relationship with Ron and Janelle to the next level; Ben shaves his beard in an attempt to appear more clean-cut to potential advertisers.

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.

When Dog River is given a town bell, the citizens can't agree how it should be used; Oscar and Emma become coffee snobs and Brent investigates Wanda's strange spy-like behavior.

Karen and Davis try to uncover why Karen suddenly has violently angry feelings toward Hank; the citizens of Dog River are captivated by the Leroys' new swing; Brent, Wanda and Lacey butt heads over aromatherapy.

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.

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.

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.

When Dog River is given a town bell, the citizens can't agree how it should be used; Oscar and Emma become coffee snobs and Brent investigates Wanda's strange spy-like behavior.

Karen and Davis try to uncover why Karen suddenly has violently angry feelings toward Hank; the citizens of Dog River are captivated by the Leroys' new swing; Brent, Wanda and Lacey butt heads over aromatherapy.

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.

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.

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.

When Dog River is given a town bell, the citizens can't agree how it should be used; Oscar and Emma become coffee snobs and Brent investigates Wanda's strange spy-like behavior.

Karen and Davis try to uncover why Karen suddenly has violently angry feelings toward Hank; the citizens of Dog River are captivated by the Leroys' new swing; Brent, Wanda and Lacey butt heads over aromatherapy.

Harris is newly unemployed, depressed and has moved back into the house, while Becky struggles to find affordable childcare; Jackie suggests Becky reach out to Emilio's family for support; the family contemplates tattoos.

Ross has concerns about Emily's interests; Rachel's plans for Joshua are upset by a late change of venue.

Ross tries to keep Emily from returning to London; Monica and Rachel attempt to win back their apartment.

Georgie's attempt to break up Missy and her new boyfriend backfires.

Monica and Phoebe find life in wedding attire has its charm; Rachel asks Joshua for more spontaneity.

The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

A game threatens Sheldon's relationship with Stephen Hawking; Penny secretly signs up for a college class.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

Harris is newly unemployed, depressed and has moved back into the house, while Becky struggles to find affordable childcare; Jackie suggests Becky reach out to Emilio's family for support; the family contemplates tattoos.

Bev is back from Arizona and realizes she'd like to use her finances to spread happiness; Bev decides to fund Mark's tuition to a prestigious coding camp, but Darlene tries to convince her to give the money to Harris instead.

Chandler and Joey compete to be best man at Ross' wedding; Joey loses Ross' treasured wedding ring; Phoebe suffers extreme mood swings because of her pregnancy.

Rachel, Monica, Joey, Chandler and Ross go to London for the wedding where Joey meets Sarah Ferguson, the Duchess of York.

Rachel frantically tries to get to London to tell Ross that she loves him before he marries Emily; Ross' parents argue with Emily's parents, Steven and Andrea Waltham.

Ross is distraught over the wedding; Emily punches Ross and flees from the reception; Monica and Chandler try to control their passions.

The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

A game threatens Sheldon's relationship with Stephen Hawking; Penny secretly signs up for a college class.

Bernadette tries to negotiate peace between Sheldon and Wolowitz; Penny receives an embarrassing offer; Raj wants Amy to write to a woman on his behalf.

Sheldon is faced with a new reality when he visits his mom in Houston; a murder mystery party starts arguments.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

Bev is back from Arizona and realizes she'd like to use her finances to spread happiness; Bev decides to fund Mark's tuition to a prestigious coding camp, but Darlene tries to convince her to give the money to Harris instead.

The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

A game threatens Sheldon's relationship with Stephen Hawking; Penny secretly signs up for a college class.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

Bernadette tries to negotiate peace between Sheldon and Wolowitz; Penny receives an embarrassing offer; Raj wants Amy to write to a woman on his behalf.

Chandler and Joey compete to be best man at Ross' wedding; Joey loses Ross' treasured wedding ring; Phoebe suffers extreme mood swings because of her pregnancy.

Rachel, Monica, Joey, Chandler and Ross go to London for the wedding where Joey meets Sarah Ferguson, the Duchess of York.

Rachel frantically tries to get to London to tell Ross that she loves him before he marries Emily; Ross' parents argue with Emily's parents, Steven and Andrea Waltham.

Ross is distraught over the wedding; Emily punches Ross and flees from the reception; Monica and Chandler try to control their passions.

Bernadette tries to negotiate peace between Sheldon and Wolowitz; Penny receives an embarrassing offer; Raj wants Amy to write to a woman on his behalf.

Sheldon is faced with a new reality when he visits his mom in Houston; a murder mystery party starts arguments.

Harris is newly unemployed, depressed and has moved back into the house, while Becky struggles to find affordable childcare; Jackie suggests Becky reach out to Emilio's family for support; the family contemplates tattoos.

Bev is back from Arizona and realizes she'd like to use her finances to spread happiness; Bev decides to fund Mark's tuition to a prestigious coding camp, but Darlene tries to convince her to give the money to Harris instead.

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.

Hank is upset when Wanda replaces him as Corn Maze designer at the the Dog River Corn Festival; Emma and Oscar compete with Davis to see who can complete their volunteer task first; Brent and Lacey raise money by selling popcorn.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

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.

Taxi passengers win money by answering trivia questions.

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.

Hank is upset when Wanda replaces him as Corn Maze designer at the the Dog River Corn Festival; Emma and Oscar compete with Davis to see who can complete their volunteer task first; Brent and Lacey raise money by selling popcorn.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

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.

Taxi passengers win money by answering trivia questions.

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.

Hank is upset when Wanda replaces him as Corn Maze designer at the the Dog River Corn Festival; Emma and Oscar compete with Davis to see who can complete their volunteer task first; Brent and Lacey raise money by selling popcorn.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

Dan is finally ready to share his feelings with Louise; Darlene realizes how badly she wants a baby; Ben gets caught up playing handyman and babysitter for Becky, which causes him to miss an important meeting.

Chandler and Joey compete to be best man at Ross' wedding; Joey loses Ross' treasured wedding ring; Phoebe suffers extreme mood swings because of her pregnancy.

Rachel, Monica, Joey, Chandler and Ross go to London for the wedding where Joey meets Sarah Ferguson, the Duchess of York.

Rachel frantically tries to get to London to tell Ross that she loves him before he marries Emily; Ross' parents argue with Emily's parents, Steven and Andrea Waltham.

Ross is distraught over the wedding; Emily punches Ross and flees from the reception; Monica and Chandler try to control their passions.

Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

Dan is finally ready to share his feelings with Louise; Darlene realizes how badly she wants a baby; Ben gets caught up playing handyman and babysitter for Becky, which causes him to miss an important meeting.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Barney debates giving up wearing suits to land an attractive bartender; Ted gets closer to meeting the future mother of his children.

Marshall tries to prove that his attractive female colleague (Amanda Peet) kissed him; Robin discovers that a drinking game has been made up about her.

To forget about their own miserable week, Barney's friends root him on in his quest to have the perfect week.

Lily and Marshall forget to fix Ted up on a blind date for Valentine's Day; Robin's obnoxious colleague invites her to a party at his apartment.

Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

Sheldon has a personal crisis when he decides string theory is a waste of his time; a double date ends in embarrassment for Howard.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

Barney debates giving up wearing suits to land an attractive bartender; Ted gets closer to meeting the future mother of his children.

Marshall tries to prove that his attractive female colleague (Amanda Peet) kissed him; Robin discovers that a drinking game has been made up about her.

To forget about their own miserable week, Barney's friends root him on in his quest to have the perfect week.

Lily and Marshall forget to fix Ted up on a blind date for Valentine's Day; Robin's obnoxious colleague invites her to a party at his apartment.

Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

Sheldon has a personal crisis when he decides string theory is a waste of his time; a double date ends in embarrassment for Howard.

Dan is finally ready to share his feelings with Louise; Darlene realizes how badly she wants a baby; Ben gets caught up playing handyman and babysitter for Becky, which causes him to miss an important meeting.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Brent has an opportunity to pursue his dream, but his weekly disappearances causes rumours to circulate.

A big city girl from Toronto moves in to run the coffee shop next door to the Corner Gas station.

A tax man comes to audit the Corner Gas business records; Lacey's approach to selling coffee doesn't fly with the locals.

Lacey offers free Pilates classes; Oscar takes steps to avoid being buried in a cheap looking coffin.

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.

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.

Brent has an opportunity to pursue his dream, but his weekly disappearances causes rumours to circulate.

A big city girl from Toronto moves in to run the coffee shop next door to the Corner Gas station.

A tax man comes to audit the Corner Gas business records; Lacey's approach to selling coffee doesn't fly with the locals.

Lacey offers free Pilates classes; Oscar takes steps to avoid being buried in a cheap looking coffin.

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.

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.

Brent has an opportunity to pursue his dream, but his weekly disappearances causes rumours to circulate.

A big city girl from Toronto moves in to run the coffee shop next door to the Corner Gas station.

A tax man comes to audit the Corner Gas business records; Lacey's approach to selling coffee doesn't fly with the locals.

Lacey offers free Pilates classes; Oscar takes steps to avoid being buried in a cheap looking coffin.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

Barney debates giving up wearing suits to land an attractive bartender; Ted gets closer to meeting the future mother of his children.

Marshall tries to prove that his attractive female colleague (Amanda Peet) kissed him; Robin discovers that a drinking game has been made up about her.

To forget about their own miserable week, Barney's friends root him on in his quest to have the perfect week.

Lily and Marshall forget to fix Ted up on a blind date for Valentine's Day; Robin's obnoxious colleague invites her to a party at his apartment.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

The Conners share their differing takes on why they all think everyone should vote; Louise gets an opportunity that might send her away from Lanford, prompting the family to interfere in Dan's complicated relationship.

The gang tries to convince Ted that Tiffany (Carrie Underwood) is stringing him along.

When Robin confesses she is still angry with Barney, she enlists the help of a self-help author (Jennifer Lopez) who plans to beat Barney at his own game.

Lily is upset when Ted brings a date to her birthday dinner celebration.

Marshall is mugged, and Lily wants a gun; he invents a story about a monkey to make her less wary.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

Professor Proton (Bob Newhart) helps Sheldon deal with grief; Leonard gets into a competition with Penny; Bernadette and Amy prepare a "Star Wars Day" gift for the guys.

Conan and former first lady Michelle Obama visit U.S. troops stationed at the Al Udeid Air Base in Doha, Qatar.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

The gang tries to convince Ted that Tiffany (Carrie Underwood) is stringing him along.

When Robin confesses she is still angry with Barney, she enlists the help of a self-help author (Jennifer Lopez) who plans to beat Barney at his own game.

Lily is upset when Ted brings a date to her birthday dinner celebration.

Marshall is mugged, and Lily wants a gun; he invents a story about a monkey to make her less wary.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

Professor Proton (Bob Newhart) helps Sheldon deal with grief; Leonard gets into a competition with Penny; Bernadette and Amy prepare a "Star Wars Day" gift for the guys.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

The Conners share their differing takes on why they all think everyone should vote; Louise gets an opportunity that might send her away from Lanford, prompting the family to interfere in Dan's complicated relationship.

Brent agrees to baby-sit Wanda's troubled 6-year old son, Tanner, to impress Lacey.

Rookie cop Karen makes it her mission to find out who spray-painted "Grad 68" on the water tower.

Dog River decides to put up a giant landmark; Oscar struggles to stop a love-struck admirer from ruining his marriage.

When Lacey's ex-fiance from Toronto comes to visit, the people of Dog River take matters into their own hands to protect her from her past.

Dog River prepares for its annual talent show; Brent's cousin Carl, whom everyone seems to love, except Brent, comes for a visit.

Davis tries to keep up with Brent; Lacey tries to prove she has community spirit by trying to save one of the town's historic landmarks.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

Howard considers whether or not he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.

The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.

Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

Leonard and Sheldon hire the host (Bob Newhart) of their favorite childhood TV show to perform; Bernadette and Howard run into trouble while dog-sitting for Raj's pet.

Amy and Sheldon's relationship takes a surprising turn during a game of "Dungeons & Dragons"; Lucy and Koothrappali have an awkward date.

When Leonard receives an exciting opportunity to work overseas, Penny and Sheldon are thrown for a loop.

Sheldon and Penny share secrets while Leonard is away; Wolowitz helps Raj get over his ex.

Leonard and Sheldon's friendship is tested; Wolowitz's relationship with his mom causes a threat to his masculinity.

Raj designs a scavenger hunt that brings out the best - and the worst - in the whole gang.

Sheldon wants revenge after Amy ruins one of his favorite films; Leonard finds a way to get Penny to do anything; Stuart and Raj make online dating profiles.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

Howard considers whether or not he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.

The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.

Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

Leonard and Sheldon hire the host (Bob Newhart) of their favorite childhood TV show to perform; Bernadette and Howard run into trouble while dog-sitting for Raj's pet.