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Updated: Mon, 14 Oct 2013 18:30:00 GMT | By Colleen Last
The Big Bang Theory: before they were famous

What were the stars of The Big Bang Theory doing before they started on the show?

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The Big Bang Theory, currently in its seventh season, has overtaken Modern Family as the highest-rating US comedy.

It's a perfect time, then, to find out what the actors who play Sheldon, Leonard, Penny and the others were doing before they found fame in the quirky sitcom about a group of geeks and their pretty neighbour...