The Big Bang Theory

Season 5 Episode 2

The Infestation Hypothesis

Aired Thursday 8:00 PM Sep 22, 2011 on CBS

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  • Notes

    • International Airdates:
      Australia: October 10, 2011 on Channel 9
      United Kingdom: November 10, 2011 on E4
      Czech Republic: June 19, 2012 on Prima COOL
      Turkey: September 11, 2012 on CNBC-e
      Finland: January 14, 2013 on Sub