When I was a kid, I had a Coleco vision. I played Donkey Kong for 11 hours. An image of the little man(maybe it was Kong) was burnt into the tv. I have a bigscreen projection tv and I'm a little worried about hooking up my Xbox 360 to it. I've seen other people play on bigscreens before, but they had acquired the tv just a little before they were playing. I've never seen the longterm consequences. Is this actually a danger?