Tripper Posted December 14, 2017 Posted December 14, 2017 'The Celebration Reverberation' - Season 11, Episode 11 Airs Thursday, December 14 at 8/7c on CBS. Sheldon and Wolowitz plan birthday celebrations for Amy and Halley, respectively. Also, Leonard receives a Christmas letter from his brother that causes him to spiral out about his own lack of accomplishment. Share this post Link to post Share on other sites More sharing options...
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