...'Messiah' on Channel 4 last week? (I can't remember which day it was on). It had this guy called Derrel Brown travelling round the states posing as a psychic medium/healer etc. In one part of the documentary, he was with a large group of people who were all skeptical about the existence of God and of spirits, but somehow this dude made another guy fall over to the floor and when he got up, Derren asked him if he believed in God the guy said 'yes'. A little bit later on Derren asked several other people in the room and nearly all of them said they believe in God (one said 'maybe') but previously all of those people were skeptical about God before meeting Derren. I thought it was a really interesting show but I can't establish it's genuinity for sure. Apparently the point Derren wanted to make is to see if he could convince others of his psychic 'gift' (Derren himself doesn't think of himself as having one) and if they would believe him without question. That was the actual result of his research.