I was watching the latest "Medium" on the Replay, when I had a thought - a lot of recent shows with a paranormal bent have gone with a "good" psychic in opposition with a "bad" psychic - The ill fated "Point Pleasant" operated like that, as did "Tru Calling". Obviously, "Revelation" is doing that, and even "Buffy" went that way when Faith went bad. None of this is surprising, of course - good vs. evil is a very old theme.

So anyway, I was watching "Medium", and jokingly asked my wife when they would add an evil medium to oppose the heroine. She gave a scoffing look, but then the preview for next week came on - and sure enough, there it was. Within Hollywood, there's definitely conservation of story lines...