Whatever you get they will be subject to tweaking just like your audio. We have 2 Panasonic Plasmas and I am using line conditioners and good HDMI with both , it made a difference. I just got a better power cord for the living room set, not easy as they are recessed and none of my audio cords worked. I found that one of the smaller Oyaide cords will fit. The picture is now amazing when they broadcast good signal. Programs vary all over the place from amazing to yuck!
Buy LED, LCD or Plasma
Going for a new TV. Any hints, warnings or advice? It will go over the fireplace instead of the rug there now.