The Big Bang Theory

Bernadette argues with Howard's mum while he's on the space station (S6 Ep1)

Sheldon learns that Penny is thinking about breaking up with Leonard (S6 Ep2)

Amy is jealous when Sheldon hires an attractive female assistant (S6 Ep3)

Howard is disappointed by the lack of a hero's welcome on his return from space (S6 Ep4)

Sheldon and Amy disagree on what costumes to wear to Stuart's fancy dress party (S6 Ep5)

Stephen Hawking agrees to play Words with Friends online with Sheldon (S6 Ep6)

Amy argues with Wil Wheaton while filming Fun with Flags (S6 Ep7)

The guys try to find out what Sheldon does for 20 minutes after lunch every day (S6 Ep8)

Sheldon balks when his unused university parking space is reallocated to Howard (S6 Ep9)

Sheldon reluctantly takes care of Amy when she's sick (S6 Ep10)

Sheldon shares painful Christmas memories when he and Leonard play Dungeons & Dragons (S6 Ep11)

Sheldon is displeased when his assistant, Alex, starts flirting with Leonard (S6 Ep12)

The guys take a road trip to a comic book convention and a Star Trek location (S6 Ep13)

Sheldon is forced to work on the same project as his nemesis, Barry Kripke (S6 Ep14)

Sheldon gives away the ending of the book that Leonard is reading (S6 Ep15)

Leonard tries to give Penny the perfect Valentine's Day (S6 Ep16)

Raj vows never to leave his flat or interact with another woman again (S6 Ep17)

The guys are forced to volunteer for a university committee (S6 Ep18)

Sheldon finds an unopened letter from Howard's long-absent father (S6 Ep19)

Leonard, Sheldon, Raj and Kripke are all keen to apply for a tenured position (S6 Ep20)

Amy attempts to cure Sheldon of his compulsion to complete every task (S6 Ep21)

Leonard and Sheldon learn that a science TV show host can be booked for parties (S6 Ep22)

The guys invite the girls to a Dungeons & Dragons date night (S6 Ep23)

Leonard is offered a job that will keep him out of the country for several months (S06 Ep24)