The Big Bang Theory
The Alien Parasite Hypothesis
Season 4 Episode 10 of 24
Amy finds she has romantic feelings for Penny's former boyfriend Zack, while Raj and Howard begin competing to prove which of them would make the better superhero. Comedy, guest starring Brian Thomas Smith
The Big Bang Theory airs on E4 HD at 5:10 PM, Thursday 19 September. (Subtitles, audio description.)
Topics
Movie ➝ Drama
Sitcom
Johnny Galecki
Actor
Jim Parsons
Actor
Kaley Cuoco
Actor