| The Big Bang Theory - S04E24 - The Roommate Transmogrification.avi|
Plot Summary: When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.
Release Date: 2011-05-19
Directors: Chuck Lorre,Bill Prady
Writers: Chuck Lorre,Bill Prady
Starcast: Johnny Galecki,Jim Parsons,Kaley Cuoco