This is your chance to get on an episode of the Colorado-based show, South Park. This is only like a dream come true and here's how you get on South Park.
By now we've seen 'The Simpsons' tackling a number of pop-culture funhouse mirrors of themselves, from the recent 'Family Guy' crossover to last season's LEGO installment, and this year's "Treehouse of Horror" is no different. Watch Homer, Marge, Lisa, Bart and Maggie meet not only their Tracey Ullman counterparts, but countless more parodying anime, 'Adventure Time,' 'Archer' and more from last night's Halloween special!