> Any static image on a CRT or plasma display
> for long periods of time will cause burn-in.
I haven't had this happen with my newest TV or newest pair of monitors, so maybe they've finally fixed it, but there was a period of time there where burn-in applied to LCD monitors as well.
At two different jobs I've been at, I've had coworkers look at me like I had lobsters crawling out of my ears when I claimed to be experiencing screen burn after being there for about a year. However, their confusion was replaced by astonishment the moment I fullscreened an all-grey bitmap, at which point you could clearly see not just an outline of the start menu, but of my development environment as well. It's hard to believe, but at least some LCDs also get screen burn.