Had my year old 844U calibrated today by Chad B. He worked on the set for almost 5 hours. Left me with ISF Day and ISF Night settings and calibrated the 3D under Movie Mode.There were two significant changes:
1. Flesh tones are very accurate with more detail. Chad explained that with the installed settings/inaccuracies the faces appear to be "coated" with makeup. Now when watching CNN's Wolf Blitzer the sun damage/blotchiness of his face is apparent... not pretty but accurate.
2. My biggest issue with the set was excessive video "noise" apparent in dark backgrounds. On some channels this was visible from normal viewing position. He assured me that it was the compression of the Direct TV signal. The settings of the 844U were amplifying the problem. The "noise" is still there but greatly reduced with improved black levels.
The set is now calibrated to the 6500k standard (initially in Standard Mode with some tweaks). Chad said I was initially at 11000k. Yes so my whites aren't as "bright" as they were but still white. I'm sure If I had asked him to tweak the whites he would have done so.
I know what I meant. To the average user they will "see" no gain in picture quality. Quad pixel neither helps, nor takes away from picture quality. That what is shown in all the testing Chad B has done.
My 80 le844u has 240 aquos motion and 480 aquos which my understanding was almost as good as the lowest picture quality of the new 4k tvs