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Guest Star: Elon Musk

  • The Platonic Permutation

    The Platonic Permutation
    Season 9, Episode 9 - Aired November 19, 2015

    Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.

    Appeared as Himself

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