The Big Bang Theory: Season 4 Episode 24: The Roommate Transmogrification
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Carol Ann Susi
Length: 22 minutes
On Air Date: 15 Sept 2011
The Big Bang Theory: S04E24 Description: Raj moves in with Sheldon after hearing Leonard and Priya engage in a Star Trek fantasy in his apartment. Bernadette receives her doctorate.