Aired Wednesday February 28, 2:00pm - 2:30pmon E4

The Big Bang Theory

Series 2 Episode 12: The Killer Robot Instability

When Kripke challenges them to a robot duel, Sheldon jumps at the idea. The guys are all excited about building their `killer' robot, named Monte, but the duel goes awry and Monte is the causality. Elsewhere, Penny finally tells Wolowitz what she thinks of his crude behaviour toward women and he is devastated, and Leonard convinces her to go and apologise.

Original air date
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley Cuoco-SweetingPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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