The Big Bang Theory

Season 4 Episode 18

The Prestidigitation Approximation

Aired Thursday 8:00 PM Mar 10, 2011 on CBS



  • Trivia

  • Quotes

    • Penny: (on the secret of the card trick) Not knowing is part of the fun.
      Sheldon: "Not knowing is part of the fun." Was that the motto of your community college?

    • Penny: (to Howard) I think I know how you did the card trick.
      Sheldon: Oh, now please. If I don't know, you don't know. That's axiomatic.

    • (Sheldon has hacked into the Oakridge National Laboratory)
      Leonard: That computer is used for national defense. Hacking into it is a federal crime!
      Sheldon: Relax, we're not under attack right now.
      Leonard: All right, I'm leaving before the black helicopters get here.

    • Howard: Have you ever noticed whenever [Sheldon] thinks really hard it smells like bacon?

    • Sheldon: Apparently, you can't hack into a government supercomputer, and then try to buy uranium, without the Department of Homeland Security tattling to your mother.

  • Notes

    • International Airdates:
      Canada: March 10, 2011 on CTV
      Australia: May 9, 2011 on Channel 9
      United Kingdom: August 4, 2011 on E4
      Turkey: November 22, 2011 on CNBC-e
      Czech Republic: December 5, 2011 on Prima COOL
      Slovakia: December 14, 2011 on Markiza

    • This episode's end titles has Chuck Lorre's Vanity Card #335.

  • Allusions