The Big Bang Theory Season 12, Episode 21 : The Plagiarism Schism

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not. Also, Wolowitz is happily surprised to learn that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him back in the day. Guest Stars: John Ross Bowie, Kal Penn, Sean Astin, Joshua Malina,

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