Where To Stream The Big Bang Theory Season 11 Episode 4
The Explosion Implosion
- Aired October 16, 2017
- 30 Min
- Rated 6.6
- Number 272 Of 279 Rated Episodes
Howard and Sheldon bond when they drive to the desert to shoot off a model rocket. Also, when Leonard's mom, Beverly, finds a new best friend in Penny, it rubs Leonard the wrong way.