The 21-Second Excitation
| Episode Number | 8 |
|---|---|
| Season | 4 |
| Aired | 2010-11-11 |
| Overview | While the guys camp in line for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party. |
| Runtime | 25 minutes |
| Absolute Number | 71 |
| Finale Type |