The Classified Materials Turbulence
| Episode Number | 22 |
|---|---|
| Season | 2 |
| Aired | 2009-05-04 |
| Overview | Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on. |
| Runtime | 25 minutes |
| Absolute Number | 39 |
| Finale Type |