Tonight, 30 Rock celebrated its 100th episode with a storyline about—what else?—TGS's mishap-ridden centennial. Following his fake trip to Africa, a despondent Tracy Jordan thought that he could get his mojo back by being offensive on some talk shows, like Rachael Ray, Live! and Today. He was wrong. And it was funny. Also: Two big cameos!

Here's cameo one of two, featuring Brian Williams. And here's the second one—Tom Hanks!