Warning! This page contains MAJOR spoilers from a recently released or soon to be released product. Caution is advised.
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

During a group dinner with the gang, Bernadette brings a parenting book. Leonard and Penny want to try using the book to control Sheldon's behavior. Meanwhile, Amy is working on a brain cap, but when she needs an engineer, she asks Howard for help, since he has good ideas, They eventually begin to bond causing Raj, Bernadette and Sheldon to feel jealous and lonely.[3]



  • 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 23, 2017.


To be entered.


To be entered.


To be entered.



Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.