Hasn't The Simpsons already spoofed It's The Great Pumpkin, Charlie Brown on one of its many "Treehouse of Horror" episodes? You would think it would be a natural for them and it would have been done years ago.

The classic Peanuts show is one of the segments spoofed (it's called "It's The Great Pumpkin, Milhouse") on the annual Halloween episode of the show. The other segments include a Transformers spoof (the robots try to destroy Springfield, of course), and the segment I'm most looking forward to, a Mad Men takeoff. Seems that advertising agencies hire Homer to kill celebrities so they can make a bunch of money off of their likenesses. It's called "How To Get Ahead In Deadvertising." We'll see Homer falling off of a building a la Mad Men's opening credits.

As is often the case, the Simpsons "Treehouse of Horror" episode will actually air after Halloween, on November 2. After the jump, a video retrospective of the show's Halloween episodes and a sneak peek at one of the scenes from the new one.