Tonight, NBC airs the much buzzed live episode of "30 Rock" at 8:30 p.m. Guest stars include Matt Damon and Jon Hamm who've both been fantastic in their comedic roles on the series.

Preceding "30 Rock" is a "Community" episode that creator Dan Harmon says will follow in the footsteps of the classic "Modern Warfare" episode. Much like "Modern Warfare" was a spoof on action movies, tonight's episode, "Basic Rocket Science," will be a spoof on astronaut movies.