I've seen Most Haunted a few times. I cant watch it now cause I have a really over active imagination. I watched a Hallowe'en special a couple of years back and I didn't sleep for like 3 nights!
I debated about watching the Hallowe'en special this year. They were looking for Jack the Ripper or something, and it sounded pretty interesting. But in the end I opted out and just had my next door neighbour tell me about it. But it was apparently crap, so I didn't miss much.
I dont beliveve in ghosts, but I dont disbelieve in them. I've never had any experiences of that sort personally. But obviously I know people who have. Everybody knows at least someone who claims to have seen one. I'm not a skeptic, I'm open minded about the whole thing. But like I said, I have a stupidly over active imagination, so I dont watch this show.