I have a five year old 52" rear projection RCA. A few days ago I got home from work and tried to turn it on. The power light comes on and I hear something that sounds like the tv turning on, but it doesn't. The power light goes off a second or so later, then turns back on, I hear the same sound again, and the light turns off again. It cycles like this three times and stays off for a few minutes before letting me try again. If I do try to turn it on before the few minutes are up, it doesn't do anything. If I let it sit for a few minutes and try to turn it on again, it goes through the whole process again. Anyone have any ideas, or experienced this before?