The Big Bang Theory Season 11 Episode 11

The Big Bang Theory Season 11 Episode 11

Sheldon and Wolowitz plan birthday celebrations for Amy and Halley, respectively. Also, Leonard get a Christmas letter from his brother that causes him to spiral out about his own lack of accomplishments.

Serie: The Big Bang Theory

Guest Star:

Episode Title: The Celebration Reverberation

Air Date: 2017-12-14

Year: