03/28/2008 02:45 am ET Updated May 25, 2011

The Sitcom With A Physicist On Staff

Revenge of the nerds?

Not quite. But geek heaven abounds on CBS' The Big Bang Theory (tonight, 8:30 ET/PT), one of the rare TV sitcoms to employ a physicist.

The science must be working: The freshman series is one of the fall season's few to gain traction, building audience from its How I Met Your Mother lead-in and averaging about 9 million viewers. CBS has already extended the show for a full season.

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