I just bought the Samsung 40" LCD HDTV Model #: SAM LNT4071F. Got it home and hooked it up to Brighthouse cable (through HD box and HDMI cables supplied by Brighthouse) and the picture quality was unbelievable. Everything was crisp and clear right down to the finest detail. No noise or grainyness at all.
I called Brighthouse to swap out my HD box for a DVR box. When they swapped the boxes, the DVR box didn't work. Cable guy said my cable connections on the outside of my house were old and outdated, so he dropped a new line from the pole and installed a new box outside.
Picture quality is ok now, but I now have some grainyness that wasn't there before. The TV went from being absolutely perfect to just average. Brighthouse came back, checked the lines and signal strength and think I am crazy because everything checked out. I had them re-install my old HD box but that didn't help.
Any thoughts on how to get the picture quality back to being nearly perfect? I heard that Monster sells a surge protector/clean power device that could help. Also, I heard that I could resolve this problem by switching to Verizon Fios. Any suggestions would be much appreciated. Thanks.