I am a big fan of "30 Rock" on NBC and think that Alec Baldwin is hysterical on that show. He is channeling the same character for this commercial for Hulu, my favorite during the Super Bowl.
In this ad for Bud Light (a close second), Conan O'Brien demonstrates the power of being willing to make a fool of one's self.
Bridgestone uses a common cultural reference, Mr. Potato Head in a truly ingenious way.