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24 Episodes 2012 - 2013
Relationships are the name of the game in the sitcom's sixth season. Howard (Simon Helberg) and Bernadette (Melissa Rauch) begin their married life with Howard on the International Space Station. When he returns, the two of them move out of his mother's house and into their own apartment. Meanwhile, Penny (Kaley Cuoco) and Leonard (Johnny Galecki) work on their on-again, off-again relationship; and Sheldon (Jim Parsons) and Amy (Mayim Bialik) push their boundaries. Comic-book store owner Stuart (Kevin Sussman) has a bigger role this season, as he begins to hang with the group more regularly in Howard's absence.
Episode 1
Thu, Sep 27, 2012 30 mins
Season 6 blasts off with Wolowitz in space, and despite that, he still has to intervene in an earthbound argument between his mother and Bernadette. Meanwhile, all Raj's friends are on dates, leaving him to ponder a solution to his loneliness.
Episode 2
Thu, Oct 4, 2012 30 mins
Sheldon uncovers a secret about Penny and Leonard; and in space, the other astronauts are having a high time picking on Howard.
Episode 3
Thu, Oct 11, 2012 30 mins
Amy feels threatened when Sheldon hires a young female assistant. Meanwhile, the pressure of being in space takes its toll on Wolowitz.
Episode 4
Thu, Oct 18, 2012 30 mins
Wolowitz is disappointed when he doesn't receive a hero's welcome upon his return from space, while game night degenerates into a pitched battle of the sexes.
Episode 5
Thu, Oct 25, 2012 30 mins
Leonard tries a scientific approach to seducing Penny, while the gang celebrates Halloween at Stuart's comic-book store. Former astronaut Buzz Aldrin has a cameo.
Episode 6
Thu, Nov 1, 2012 30 mins
A disagreement over a game of Words With Friends endangers Sheldon's relationship with his science idol Stephen Hawking, while Penny secretly takes a course at a local college.
Episode 7
Thu, Nov 8, 2012 30 mins
The new Mrs Wolowitz wants her husband to move out of old Mrs Wolowitz's house, while Amy and Wil Wheaton (as himself) get into a dispute and Sheldon is caught in the middle.
Episode 8
Thu, Nov 15, 2012 30 mins
Howard and Raj try to discover where Sheldon disappears to every afternoon at 2:45. Meanwhile, jealousy appears to have insinuated itself into Leonard and Penny's relationship.
Episode 9
Thu, Nov 29, 2012 30 mins
Sheldon gets all revved up when the university reassigns his parking space to returning space traveller Wolowitz, and the resulting battle affects the entire gang.
Episode 10
Thu, Dec 6, 2012 30 mins
Amy falls ill and Sheldon becomes her nursemaid, while Wolowitz takes a fishing trip in order to bond with his father-in-law.
Episode 11
Thu, Dec 13, 2012 30 mins
A game of Dungeons & Dragons triggers Sheldon's memories of Christmases past, while Penny, Bernadette and Amy play matchmaker for Raj.
Episode 12
Thu, Jan 3, 2013 30 mins
Sheldon has an appointment with human resources when he gets accused of sexual harassment, and it looks like Leonard, Raj and Howard may go down with him.
Episode 13
Thu, Jan 10, 2013 30 mins
The guys' road trip to a comic-book convention in Bakersfield, California, gets sidetracked when Leonard's car is stolen.
Episode 14
Thu, Jan 31, 2013 30 mins
Sheldon is outraged, and his confidence takes a hit, when he's forced to work with his nemesis, Barry Kripke. Meanwhile, Howard and Raj shell out big bucks for action figures of themselves.
Episode 15
Thu, Feb 7, 2013 30 mins
Leonard and Sheldon get into a spat that sends Leonard across the hall to live with Penny. Meanwhile, Raj keeps an eye on Mrs Wolowitz while Howard's away on a trip.
Episode 16
Thu, Feb 14, 2013 30 mins
Leonard arranges a magical Valentine's Day dinner date for Penny, but the magic doesn't last after a squabbling Howard and Bernadette join them and Penny's ex turns up at the restaurant. Meanwhile, Sheldon assigns his research assistant to find a Valentine's Day present for Amy, while Raj talks Stuart into having a party at the comic-book store.
Episode 17
Thu, Feb 21, 2013 30 mins
Koothrappali is put out when his date walks out in the middle of their evening, so he vows that he will forever stay put in his apartment. Meanwhile, Sheldon is quite impressed when he witnesses Penny's acting skills firsthand.
Episode 18
Thu, Mar 7, 2013 30 mins
Sheldon, Leonard and Howard promote careers in science before a group of junior-high girls, while Raj readies for a date with Lucy.
Episode 19
Thu, Mar 14, 2013 30 mins
A letter written to the teenage Howard by his father, who had deserted the family years earlier, is uncovered in a closet, and the young man is unsure if he wants to read it. Meanwhile, Leonard and Penny host a cocktail party for grown-ups.
Episode 20
Thu, Apr 4, 2013 30 mins
The guys' competition for a tenured professorship leads them to shamelessly schmooze committee members, including an HR manager who's had a run-in with Sheldon.
Episode 21
Thu, Apr 25, 2013 30 mins
Amy tries to help Sheldon get over his compulsive desire for closure after one of his favorite TV shows is canceled before it reached a satisfying conclusion. Meanwhile, Raj uncovers a secret about the new woman in his life, Lucy.
Episode 22
Thu, May 2, 2013 30 mins
Sheldon is positively charged with excitement when he hires Professor Proton (Bob Newhart), the host of his favorite childhood TV program, to appear at his apartment. Later, Howard and Bernadette agree to dogsit Raj's pooch, but things don't go as planned.
Episode 23
Thu, May 9, 2013 30 mins
The women's Vegas vacation is called off, so the men invite them to play Dungeons & Dragons, which has a most unusual effect on Amy and Sheldon. Meanwhile, Raj and Lucy's date goes less than perfectly.
Episode 24
Thu, May 16, 2013 30 mins
In the Season 6 finale, Leonard is offered a fantastic job opportunity overseas, knocking Penny and Sheldon for a loop.