My Toshiba Plasma 42HP83 is about 4 years old. While watching tv, a dvd, or playing a game, a flickering rectangle about 2 inches wide by 6 inches high appears in the top/middle of the screen. It started happening infrequently, but now seems to happen more often, usually after the set has been on for a few minutes. It also goes away for a while, but comes back. I also think it may be getting bigger. Any advice for me? Is it worth fixing (no warranty)?
Thanks everyone. Happy New Year!