As your set is under warranty, go ahead and have a tech go out and take a look at it. If everything is covered under your extended warranty, what do you have to lose!
in the last 2 days ive noticed the pixels on my tv are turung purple. Its not sure the blacks its the entire picture and its not just cable but also Xbox. Got a 4 year war from best buy. whats your take. Will the fix it or replace or am i **** outta luck. Bought it in 06 but warrenty is still good.