Have an in home appointment scheduled but it sounds like it's either the A-board or power supply. If it's the former, I assume it needs recalibration. But here's my question - Do I have any reason to believe that a replacement board could negatively impact picture quality (aside from the recalibration)? What I mean is that in the past I've had a tv repaired but the picture was worse yet the repair shop said it was fine...that tv was never the same after repair. The vt50 is four months old!