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Secrets from Inside "NCIS" Lab

Ever wondered how you can get your hands on a cup of "Caf-Pow"?

Pauley Perrette, who plays forensic specialist Abby Sciuto on "NCIS," revealed on "The Early Show" what's actually in her drinking cup in the "NCIS" lab.

Slideshow: TV to Fall For

Perrette, and her co-star Sean Murray, who plays special agent Timothy McGee, on "NCIS" gave "Early Show" co-anchor Maggie Rodriguez a tour of the show's lab, and dished on what may be next for their characters' volatile relationship.

For much more with Perrette and Murray, click on the video below.

The seventh season of "NCIS" premieres Tuesday night at 8:00/7:00 Central on CBS.

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