Color wheel has gone out 4 times since I purchased this set on 8-30-2006..Have called Sharp service requesting to purchase a new "color wheel" ...case # 4470299 and talked with "Keith" on 10-13-2008 and you can not just get the color wheel you have to purchase the entire unit at $1400-1800...which is close to what I paid for my set...all it takes to fix is some lubricant on the color wheel shaft and the set works perfect for 3-4 months. Have tried to find out what is the best lubricant to no avail...my Model # is 65DR650 and the serial # is 508412488...CC Pharr cell# 336-625-7536 e-mail "[email protected]"