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The Horror, The Horror!

"The Collaboration Contamination"[1] is the fifth episode of the eleventh season of the American sitcom The Big Bang Theory. The episode will air on October 23, 2017.


Leonard and Penny use a parenting book of Bernadette's to control Sheldon's behavior. Howard and Amy start working long hours in her lab, causing Raj, Bernadette, and Sheldon to get jealous and lonely.[2]

Extended Plot

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  • Title Reference: To be entered.
  • Taping date: September 19, 2017
  • This episode was watched by xx.xx million people with a rating of xx.xx (adults 18-49).
  • Total viewers including DVR users xx.x million.
  • The Big Bang Theory was ranked #x for the week ending xx October 2017.
  • This episode aired in Canada on October 2017.


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