Do you love Heroes as much as I do? Or do you want to see what the buzz is about? NBC is airing three encore episodes this Sunday from 8 to 11 pm/ET. The sad news: The original plan, says Broadcasting & Cable, was to fill Sunday Night Football's off-week vacancy with a Friday Night Lights triple play. What does that change of heart mean?.... Fox invites fans of The Simpsons to create their own promo for this year's "Treehouse of Horror" Halloween episode by logging onto TheSimpsons.com/treehouse. The best edit wins a trip for two to The Simpson's May 2007, 400th-episode gala in Los Angeles.... John Mark Karr, the one-fry-short-of-a-Happy Meal guy who falsely claimed to have murdered JonBenet Ramsey, sits down for a one-on-one interview on today's The Dr. Keith Ablow Show.