I got one in the mail today from Best Buy asking me if I want to extend my service agreement on my RCA MM52110 Rear Projection 4:3 HD television. What is the track record on these things? I want to renew, but they want 398.38 for 3 years. I am thinking about just signing up for one year at 165.99. I really hope it breaks down and they have to come put new parts in it or replace it with something equivalent. Any thoughts?