Clothing from The Thespian Catalyst

  • Number 73 T-Shirt

    Number 73 T-Shirt wearing Number 73 T-Shirt
    Worn by Sheldon
  • Periodic Table T-Shirt

    Periodic Table T-Shirt
    Worn by Leonard
  • The Thespian Catalyst

    'The Thespian Catalyst' - Season 4, Episode 14

    Sheldon is inundated with negative feedback when he teaches a class. To improve his communication skills, Sheldon gets acting lessons from Penny. Meanwhile, Koothrappali has romantic daydreams about Howard's girlfriend, Bernadette.

    Air Date: February 3, 2011.

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