Tracy and Jenna are on the case of the missing whiskey. It's a shot from the 3/1/12 episode of 30 Rock.
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Kenneth shakes the hand of a business nemesis in this scene from 30 Rock. He's played by Mike Torpey.
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30 Rock Season 6 Episode 10 Quotes

You sound like a cop, and I should know, my uncle was a cop...in a porno.

Tracy

I got really good at hiding in prison...and making wine in my toilet.

Lynn