I haven't seen a full episode of this show, but my friends showed me a clip about him talking about sesame street and it was hilarious. He used the f-word and it's derivitives a couple of times, and it was completely uncensored. People under the age of 16 shouldn't watch shows with language like that if it's uncensored.
A wonderful show, but probably not for most kids. We have the shows on DVD and only allow our son to watch select skits. We also discuss why certain things are said and done on the show to make a point, but that these aren't things that you should say in real life.