The Big Bang Theory – Season 5, Episode 5

PGR Penny worries that she's screwed things up permanently with her friends after her night with Raj, while Sheldon takes command of the paintball team.

PGR A battle of wills between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya, who has moved back to India.

PGR Attending a co-worker's wedding, Leonard and Amy get to know each other better, while Howard and Bernadette spend the weekend with Mrs Wolowitz.

G When Raj is upset he's the only one of the four guys who's not in a relationship, Penny sets out to find the perfect date.

G Sheldon and Leonard get invited to a housewarming party at Wil Wheaton's house, while Howard gets an out-of-this-world opportunity.

PGR When his mother comes for another visit, Sheldon is disappointed that she's stopped being the mother he wants her to be.

G A cute comic book artist puts Leonard's relationship with Priya to the test, while Sheldon gets into the spirit of Halloween by trying to scare the guys.

PGR When it is revealed that Penny and Bernadette went wedding dress shopping without her, Amy becomes heartbroken and makes a move on Sheldon.

PGR Can friends with benefits still be friends without? Leonard and Penny try hanging out alone, while Sheldon must overcome his fear of birds.

PGR Sheldon gives Amy a 31 page document stating the terms of agreement for their relationship.