Duration: 22m

TV-PG 8.2 Comedy / Romance

The Big Bang Theory S1E15

Leonard, Howard and Raj fight over Sheldon's twin sister when she arrives in town. Raj takes part in a drug trial to suppress his selective mutism.

Release Date: May 5, 2008 (USA)

Creator: Chuck Lorre, Bill Prady

Cast: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik, Kevin Sussman, Bob Newhart