I purchased a Monster brand HDMI cable today from Target. I had been using a very cheap HDMI cable before. It does make a difference. I also found that the 5300 works very well as a monitor for my Sony VAIO.
I got these from Consumer Reports:
Picture Mode: Movie
Contrast (Picture): 90
Color Temperature: Warm2
Miscellaneous: Flesh Tone = 0, Color Space = auto, White Balance(all = 25) Gamma = 0, HDMI Black level = low, Film mode = auto1, all else off or 0
The picture is very good.
how much do you pay for the cable? I've always considered trying s higher end HDMI cable to see if they truly is s difference.