The Big Bang Theory: Season 2 Episode 12: The Killer Robot Instability
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Carol Ann Susi
Length: 25 minutes
On Air Date: 7 Apr 2009
The Big Bang Theory: S02E12 Description: Howard becomes depressed after Penny makes a cruel statement about his love life, while the rest of the guys prepare for a grudge killer robot duel against an obnoxious colleague at the university.