Aired Tuesday September 28, 1:00pm - 1:30pmon E4
The Big Bang TheorySeries 4 Episode 24: The Roommate Transmogrification
Bernadette receives her PhD and the gang begin to tease Wolowitz for being the only one among them who isn't a doctor. Meanwhile, Koothrappali becomes Sheldon's new flatmate after hearing Leonard and Priya engaging in a `Star Trek' bedroom fantasy.
- Original air date
Cast and crew