Not sure if this got covered...
I just wanted to point something out about the TV. When I was a kid, our TV had this really weird problem. It'd flip on, sometime during the night, on full blast, all by itself. Just FWOOP! Scared the hell out of all of us. Finally, we took it in to a repair shop, and they said something about some part being bad...don't remember what. Christ, sorry this is so vague, but I was, like, ten at the time or something. Anyway, just wanted to point out that sometimes TV's do turn themselves on all by themselves for very mundane reasons that don't require holy water to fix.
By the by, I'm glad I don't live in the UK. This Most Haunted show reminds me of that lame Fear show on MTV a while ago...