ARe we talking large blocks of color or little buzzing pixels? In the first instance your Brightness setting might be too high, an din the second it would be your Sharpness control. Try loading a dark movie into your player and press pause and experiment with these two controls and adjust until you can't see the noise anymore. Alternatively use one of the many available setup disks like Disney WOW
I've tried multiple settings but I cannot seem to get rid of the annoying pixelation that normally occurs in scenes that are dark or have a lot of shadows.. I have a Panasonic Plasma (42") that I've had for years and the picture is perfect.. Is this just the nature ofLED/LCD HDTVs?