Not so with the Simpsons. They've been making their Treehouse of Horror specials for 27 years now, an annual trilogy of tales that satire horror movies, surreal TV, and even classic literature.

What inspired this theme, and did you feel any pressure ... of any future 'The Simpsons' collaborations? I know the 'Treehouse of Horror' is usually its own thing, but maybe down the line?

Whether you watch The Simpsons as a whole or only the "Treehouse of Horror" episodes, you can't argue the hard work and brilliance behind each piece. The writers strive to project the best humor ...