Picture 17 / 17
![Picture 17 / 17](/./images/uploads/0/811334adbb8f7d68237.jpg)
The Collaboration Contamination
Season 11, Episode 5 - Aired October 23, 2017
When Howard and Amy collaborate on a project, Sheldon and Raj struggle with feelings of jealousy and loneliness. Meanwhile, Penny and Leonard get help for dealing with Sheldon from an unlikely source.