The Big Bang Theory

Season 4 Episode 10: The Alien Parasite Hypothesis

Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.

Genre:

Comedy

Seasons:

12

Episodes:

279

Cast:

Johnny Galecki, Jim Parsons, Kaley Cuoco

Quality:

HD

Duration:

20 min

First Air:

2007

Rating:

7.9