Guest Star: Eddie Shin

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  The Planetarium Collision
  Season 12, Episode 5 - Aired October 18, 2018

  When Sheldon feels that Amy's job isn't leaving her enough time to work with him on super-asymmetry, he goes behind her back and unwittingly sabotages her career in the process. Meanwhile, Raj is unhappy at the prospect of Howard joining him in hosting a show at the planetarium.

  Appeared as Dr. Park