Who thought a sitcom about four nerdy, socially awkward scientists could become a major comedic hit? These are some of the secrets even the biggest fans of "The Big Bang Theory" may not know about the show.

TV Show Fan
1. TV Show Fan
It's no secret that Dr. Sheldon Cooper, played by Jim Parsons, is a huge "Star Trek" fan. He often refers to the legendary science fiction program on the show. In real life, however, Parsons has never seen a single episode. Parsons has never seen "Dr. Who," either, which is another of Sheldon's favorite television programs.

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