|Episode Online Video|
S06, E19 (First Aired:
Howard considers whether or not he should open a letter from his father; Penny and Leonard host a ``grown-up'' cocktail party.
S06, E20 (First Aired:
The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.
S06, E21 (First Aired:
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.
S06, E22 (First Aired:
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.
S06, E23 (First Aired:
Amy and Sheldon's relationship takes a surprising turn during a game of ``Dungeons & Dragons''; Lucy and Koothrappali have an awkward date.
S06, E24 (First Aired:
When Leonard receives an exciting opportunity to work overseas, Penny and Sheldon are thrown for a loop.
S07, E01 (First Aired:
Sheldon and Penny share secrets while Leonard is away; Wolowitz helps Raj get over his ex.
S07, E02 (First Aired:
Leonard and Sheldon's friendship is tested; Wolowitz's relationship with his mom causes a threat to his masculinity.
S07, E03 (First Aired:
Raj designs a scavenger hunt that brings out the best -- and the worst -- in the whole gang.
S07, E04 (First Aired:
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.
S09, E08 (First Aired:
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.
S07, E05 (First Aired:
Sheldon and Amy's relationship is tested when she takes a job at his university; a fight with Bernadette leaves Howard sleeping on Raj's couch.
S07, E06 (First Aired:
Sheldon's latest scientific breakthrough leaves him feeling like a fraud; a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.
S07, E07 (First Aired:
When Professor Proton asks Leonard for help with an experiment, Sheldon retaliates by befriending Proton's rival, Bill Nye.
S07, E08 (First Aired:
When a mistake comes to light, Sheldon makes Leonard walk a mile in his shoes; Penny decides to confront Raj's ex.
S07, E09 (First Aired:
When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.
S07, E10 (First Aired:
Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard for a week.
S07, E11 (First Aired:
While Sheldon is in Texas, the rest of the gang realize how much he has changed their lives as they decorate the apartment Christmas tree.
S07, E12 (First Aired:
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.
S07, E13 (First Aired:
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.
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.
S07, E14 (First Aired:
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.
S07, E15 (First Aired:
Sheldon and Amy go on a trip to wine country with Howard and Bernadette; Penny and Leonard rush Raj's dog to the vet.
S07, E16 (First Aired:
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.
S07, E17 (First Aired:
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.
S07, E18 (First Aired:
Sheldon is faced with a new reality when he visits his mom in Houston; a murder mystery party starts arguments.
S07, E19 (First Aired:
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.
S07, E20 (First Aired:
Sheldon has a personal crisis when he decides string theory is a waste of his time; a double date ends in embarrassment for Howard.
S07, E21 (First Aired:
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.
S07, E22 (First Aired:
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.
S07, E23 (First Aired:
A bad day compels Penny to re-evaluate her choices -- including Leonard; Bernadette and Howard must care for Mrs. Wolowitz; Sheldon gives Raj advice on relationships.
S07, E24 (First Aired:
Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.
S08, E01 (First Aired:
Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.
S08, E02 (First Aired:
When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.
S08, E03 (First Aired:
Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.
S09, E10 (First Aired:
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.
S08, E04 (First Aired:
Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.
S08, E05 (First Aired:
During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.
S08, E06 (First Aired:
Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.
S08, E07 (First Aired:
The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.
S08, E08 (First Aired:
Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.
S08, E09 (First Aired:
Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.
S08, E10 (First Aired:
Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.
S08, E11 (First Aired:
Leonard and Wolowitz clash over a work emergency; Amy throws a Victorian Christmas party which Sheldon resents.
S08, E12 (First Aired:
When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.
S08, E13 (First Aired:
Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.
S08, E14 (First Aired:
Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.