On TV this weekend
Ghost Hunters Live, 7 p.m., Sci-Fi An interactive, six-hour live special from Fort Delaware, in the middle of the Delaware River, to explore whether the former Civil War POW camp is haunted. Six hours of this? That's the scary part.
Ghost Whisperer, 8 p.m., CBS When every episode of your series is based on being able to communicate with ghosts, it must be hard to do a Halloween episode, huh?
Modern Marvels, 8 p.m., History The "marvel" is how Halloween became a $6 billion economic powerhouse. Guess what? Not this year, it's not.
SERIES PREMIERE Gladiators, 4 p.m., BBC America Because they can't call it American Gladiators over there, see. They've even got their own strong guys to beat on the contestants.
Dogs 101, 8 p.m., Animal Planet First lesson: They aren't cats.
Beer for My Horses, 7 p.m., CMT Toby Keith plays a deputy in a small town who's off to rescue Claire Forlani. He probably didn't need to be talked into that.
The Simpsons, 8 p.m., Fox The 19th installment of Treehouse of Horror, our favorite episode of the year, despite the fact that it's been going south for a while now. But this year features Transformers and Charlie Brown themes, so there's hope.
SEASON PREMIERE Brotherhood, 8 p.m., Showtime Rhode Island politics and Irish-American gangs continue to collide, with no one coming out as the winner.
— Joshua Gillin email@example.com