X-Files is Horror? That's a new one on me... :| Suppose one would place Supernatural on the list if that's the case (and yes, it's also a good one if so. lol) Poltergeist: The Legacy, Freddy's Nightmares, Tales From The Crypt, and Friday the 13th: The Series had a few good episodes also. Unfortunately had a few not-so-good episodes as well.
Yeah, pretty much all the horror stuff I watch is on the "Chiller" channel. For Directv it's channel 257 I think. Probably a few of them are on other channels but not certain.