The Cohabitation Formulation
| Episode Number | 16 |
|---|---|
| Season | 4 |
| Aired | 2011-02-17 |
| Overview | As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister Priya. |
| Runtime | 25 minutes |
| Absolute Number | 79 |
| Finale Type |