20 Reasons We're In Love With 'Big Bang Theory' Star Kaley Cuoco

She's the reason a show full of nerds is TV's biggest hit.
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Nielson just came out with the list of this year's Top 10 Primetime TV Programs, and The Big Bang Theory sat at the very top, averaging nearly 20 million viewers per episode. 

We imagine that Kaley Cuoco's status as a main cast member has something to do with the geeky sitcom's massive success. Even with the show's cheesy one-liners, repetitive Star Trek references and incessant laugh track, the drop-dead gorgeous actress and Maxim cover star makes the CBS show worth watching.

So help us give a sexy salute to Cuoco for being one of the most stunning women working in TV today, and check out her hottest photos in the gallery above.