The Big Bang Theory

After a terrible date, Raj vows to never leave his apartment again. Meanwhile, Penny actually impresses Sheldon with her acting skills.(S06,E17)

Leonard, Sheldon and Howard try to advance the cause of women in science by speaking with junior high girls about their future careers.(S06,E18)

When Howard finds a letter from his father, he's forced to confront his past. And Leonard and Penny throw a grown-up cocktail party at the apartment.(S06,E19)

Let the battle begin! Leonard, Sheldon and Raj fight for tenure at the University - and the competition heats up when the girls get involved!(S06,E20)

After one of his favourite TV shows gets cancelled too soon, Sheldon feels lost, so Amy tries to help him get over his compulsive need for closure.(S06,E21)

Leonard and Sheldon hire Professor Proton, the host of their favourite childhood TV show, to perform. Raj leaves his dog with Howard and Bernadette.(S06,E22)

When the girls' trip to Vegas falls through, the guys invite them to a Dungeons & Dragons date. Meanwhile, Raj and Lucy go on an awkward date.(S06,E23)

When Leonard is offered an exciting new job opportunity overseas, Sheldon grows jealous. Raj pushes Lucy a little too far in their relationship.(S06,E24)