The Big Bang Theory/The Hofstadter Insufficiency
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The Hofstadter Insufficiency is the first episode of the seventh season of The Big Bang Theory, and the one hundred thirty-sixth episode overall.
Starring: Johnny Galecki (Dr. Leonard Hofstadter), Jim Parsons (Dr. Sheldon Cooper), Kaley Cuoco (Penny), Simon Helberg (Howard Wolowitz), Kunal Nayyar (Dr. Rajesh "Raj" Koothrappali), Mayim Bialik (Dr. Amy Farrah Fowler), Melissa Rauch (Dr. Bernadette Rostenkowski-Wolowitz)
Special Guest Star: Regina King (Mrs. Davis)