Most Electronics are "bad" right out of the box if they are going to fail. Under these circumstances the manufacturer's warranty will cover it. Extended warranties should never be purchased.
Extended Warrenty???
I recently puchased a 65" Mitsubishi big sceen TV. The dealer was really pushing the extended warrenty (5 years for about $350). Are these necessary? Helpful? Do you really need to clean/realine these every year? Any thoughts would be appreciated as I can still get in on it before the TV is delivered. Thanks!