Wow, this thread is getting hard to keep up with.
I see a lot of people concerned about the "banding" I previously posted about on my 52". Maybe "banding" was a poor choice of words. Anyway, the artifact is definitely there on all inputs. I am about 99.9% sure it is an actual problem with the panel we have. At my earliest convenience I will be returning the panel to BB and see if we can replicate the problem and then replace it with a unit that does not exhibit this problem. I am certain the display model at BB does NOT have this problem.
If you look at the image I posted in post #192 you can see what I'm talking about. That picture shows the panel displaying pure gray from Dead Pixel Buddy. The input is DVI-HDMI from my laptop. All of the variations in gray you can see are actually there in real life. The vertical bands are a bit exaggerated from real life and not noticable during normal viewing. My guess is this is something to do with the backlights. However, the horizontal "streaking" IS noticable on light even colors-- especially during a vertical pan. A pan on light blue sky or white snow is particularly annoying.
I also want everyone to understand that, besides the gray horizontal bands, I am VERY pleased with this panel. If I had to live with the barely noticable "bands" I could. I just feel that for $4k I should be 100% pleased, not 99%.
To answer the question omeone asked about OTA HD on the cable input: Yes OTA works and the Tigers-A's game last night was a real treat. The colors, black levels, and lack of motion blur were great. Maybe I was giddy because I'm a big Tigers fan