The Big Bang Theory

Penny worries that she's wrecked things with her friends after her night with Raj (S5 Ep1)

A battle of wills between Sheldon and Penny leaves Amy in the middle (S5 Ep2)

Leonard goes as Amy's date to a colleague's wedding (S5 Ep3)

Raj is upset that he's not in a relationship, so Penny tries to find him a date (S5 Ep4)

Sheldon's old nemesis Wil Wheaton invites everyone to a house-warming party (S5 Ep5)

Sheldon's mum visits and soon becomes a firm favourite with his friends (S5 Ep6)

The gang play Halloween jokes on Sheldon. Leonard questions his feelings for Priya (S5 Ep7)

Amy learns that Penny and Bernadette have been dress shopping without her (S5 Ep8)

Leonard and Penny attempt some time alone, and Sheldon faces his fear of birds (S5 Ep9)

Stuart asks Amy out, so Sheldon asks her to be his girlfriend (S5 Ep10)

Leonard confronts the man who bullied him in high school (S5 Ep11)

Sheldon's friends try to show him that sometimes it's good to pretend to care (S5 Ep12)

In the 100th episode, Leonard and Penny agree to rekindle their relationship (S5 Ep13)

Leonard and Penny give their relationship a beta test (S5 Ep14)

Leonard decides he needs to break the roommate agreement (S5 Ep15)

When Sheldon's told he has to take holiday, he helps Amy in her biology lab (S5 Ep16)

Amy buys Penny some art to celebrate their friendship (S5 Ep17)

Sheldon's organised world is turned upside down when his barber is taken ill (S5 Ep18)

Sheldon breaks his promise to accompany Amy to her aunt's birthday party (S5 Ep19)

Penny buys Star Trek memorabilia for Leonard and Sheldon (S5 Ep20)

Howard is given the job of maintaining Stephen Hawking's wheelchair (S5 Ep21)

Stories about Howard's sexual history are accidentally revealed at his bachelor party (S5 Ep22)

The rescheduled date of Howard's NASA space mission clashes with his wedding (S5 Ep23)

Bernadette decides that she wants to marry Howard before his NASA space mission (S5 Ep24)