The Big Bang Theory: Season 3 Episode 20: The Spaghetti Catalyst
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Carol Ann Susi
Length: 20 minutes
On Air Date: 14 Jul 2010
The Big Bang Theory: S03E20 Description: Sheldon is forced to go behind Leonard’s back to spend time with Penny following their breakup.