Tripper Posted October 26, 2018 Posted October 26, 2018 'The Imitation Perturbation' - Season 12, Episode 6 Aired Thursday, October 25 at 8/7c on CBS. When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss. Share this post Link to post Share on other sites More sharing options...
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