I guess I'm (as usual) the dissenter here - I thought this was the best one yet. Not a single thing made sense and yet I was laughing the whole way through. The thing I love about these guys is that, with all the f'ed up stuff they do, they manage to get more and more f'ed up without becoming contrived or pretensious.
As Gobias said, it felt like I was on the outside of a big in-joke, but I still just love watching these guys do what they do.
Oh and I think my favorite recurring skit is "Uncle Muscle's Hour", which just seems like one of those stupid "Make your own video" things you see at the mall, with Tim and Eric of couse taking it too seriously. Although I liked the last one better, when the song started skipping in the middle of it.