The Big Bang Theory
The 21-Second Excitation
Season 4 Episode 8 – first aired on Nov. 11, 2010
While the guys camp in line for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.
Quotes:
I find zombies dancing in choreographed synchronicity implausible. And also it's really scary.
I believe I'll gain acceptance by arbitrarily siding with your friends from time to time.