alec baldwin brian williams 30 rock nbc '30 Rock' live show: Amy Poehler and Paul McCartney bring the funny“30 Rock” kicked off network sweeps in style with its live broadcast on Thursday (April 26). To bolster its already stellar cast, the show brought out the stars including Paul McCartney, Jon Hamm, Amy Poehler and Kim Kardashian.

The episode centered around a decision to turn “TGS” into a taped broadcast because of the cost savings. When Kenneth (Jack McBrayer) hears the news, he can’t accept that fate. As a result, he forces Jack (Alec Baldwin), Liz (Tina Fey) and crew to reconsider their decision by revisiting great moments in live TV history. In the end, Kenneth gets his wish as “TGS” will stay live (but there might be a couple of pay cuts along the way).

The celebs were featured in a variety of different ways. McCartney and Kardashian played themselves. Hamm starred in a couple of sketches. Poehler played a younger and blonder version of her good friend Fey. Other guest stars included fellow NBCers Donald Glover, Jimmy Fallon, Brian Williams and Fred Armisen.

Here are some of our favorite sketches from the “30 Rock” live show…

Posted by:David Eckstein