The Recombination Hypothesis
| Episode Number | 13 |
|---|---|
| Season | 5 |
| Aired | 2012-01-19 |
| Overview | Leonard, who broke up with Priya, asks Penny out to a spur-of the-moment romantic dinner for two, and the duo contemplates resuming their relationship. |
| Runtime | 25 minutes |
| Absolute Number | 100 |
| Finale Type |