Laura Spencer

When the gang recreates prom night on the roof of their building, Sheldon feels pressure to participate in all the romantic traditions.

Sheldon faces a personal crisis after deciding he's wasting his time with string theory. Meanwhile, a double date ends in embarrassment.

Sheldon worries his comfortable lifestyle is preventing him from achieving scientific progress so he asks his friends to make him miserable.

Penny tries to figure out why Emily doesn’t like her; the guys consider becoming part-owners in Stuart's comic book store.

After the insults fly, Bernadette tries to negotiate between Wolowitz and Sheldon. Meanwhile, Penny is offered an embarrassing role.

Howard reluctantly agrees to volunteer at the soup kitchen; Sheldon and Amy spend Thanksgiving together as friends.