From "The Shinning" and "B.I. Bartificial Intelligence" to "Easy-Bake Coven" and "The Raven," these are the essential Springfield Halloween specials. Once upon a midnight dreary, Matt Groening’s “The Simpsons” conjured up a Halloween special with the modest title “Treehouse of Horror.” In the twilight of October 25, 1990, TV lovers tuned into Fox for a seasonal three-part parody framed as Lisa and Bart exchanging scary stories while an unfazed Maggie and terrified Homer listened along. The