Are extended warranties a waste of time. Reason i ask, is i saw a comment from someone in this forum who said screen burn was not covered under warranty or extended warranty. Which isn't what a comet salesman told me. He said that their extended warranties covered screen burn and they would simply replace the unit if it happened. He made a point of showing me a screen that it had happened to. Anyone have any thoughts ? After reading through the plasma tv forum i came to the decision that i would go for the Panasonic TH42PV500CAB after considering the Hitachi 7200 ,but now i've seen peoples comments about the new Pioneer 436 im not so sure ? Talk about confused.