Tina Fey Goes 'Inside The Actors Studio'

After 138 episodes and almost as many Emmy wins, Tina Fey's 30 Rock signed off this January. "All things must come to an end," she said at the time, "and I'll be heartbroken to leave all these people, but it was time and the right thing to do. We've told the whole story."

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But the 30 Rock we've come to love almost never existed as it was not the original idea Tina Fey went to NBC with, as she reveals in this ETonline exclusive sneak peek at Fey's Inside The Actors Studio episode.

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So what was her initial pitch, and how did Liz Lemon, Jack Donaghy and the rest of TGS' band of lovable lunatics come to be? Watch and find out!

Inside The Actors Studio March 19 at 8 p.m. on Bravo.