If you haven't been to Costco lately you should make a trip. The local store has a sign on the Vizio tvs stating that they are for use with HD content and that if you do not have HD content then they will act and perform like a standard TV. They were getting a huge amount of returns because of the poor performance in the non HD environment. Funny thing is they don't have signs like that on the Sharp, Panasonic of Sony TVs they sell.
CEDIA Certified Installer and Designer. Denon CI, URC, Crestron