Tripper Posted October 16, 2017 Posted October 16, 2017 'The Explosion Implosion' - Season 11, Episode 4 Airs Monday, October 16 at 8/7c on CBS. Wolowitz 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. Share this post Link to post Share on other sites More sharing options...
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