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  1. Samsung PN50A550 screeching, cycling on/off

    I bought a Samsung PN50A550 from Circuit City last year, and it started having a serious problem after only 7-8 months -- just in time for CC to go out of business. Each time I turn it on, it cycles on and off 3-6 times, screeching and flashing a green screen, then eventually stays on to work...