Season 4Episode 1620m
The Cohabitation Formulation
2011-02-177.4 rating
As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.
2011-02-177.4 rating
As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.