The Big Bang Theory: Season 1 Episode 16: The Peanut Reaction
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Vernee Watson, Brian Patrick Wade
Length: 20 minutes
On Air Date: 5 Jun 2008
The Big Bang Theory: S01E16 Description: When Penny learns that Leonard has never had a birthday party, she and the rest of the guys plan a surprise party for him.