October 30, 2008 at 12:00 PM EDT

Warning: This next story may make you pee your pants.

TV’s best comedy and drama are about to collide in the most spectacular of ways. 

Sources confirm to me exclusively that Mad Men star Jon Hamm is in advanced talks to do a multi-episode arc on 30 Rock.

Cross your legs — there’s more!

I’m told Hamm, who presumably got bit by the 30 Rock bug last week while hosting Saturday Night Live, would be playing a potential love interest for Tina Fey. Word is he’s Liz’s neighbor.

Although Hamm’s deal isn’t done, my Rock-solid mole assures me that it’s happening.

Okay, go make your business now. 

PS: 30 Rock returns tonight at 9:30 on NBC. If you know what’s good for you, you’ll watch it.  (Additional reporting by Lynette Rice)

More 30 Rock
Read a recap of last night’s premiere
Judah Friedlander takes you behind the scenes

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