I posted newer adjusted settings for my 46" 6000 set here.
This latest round was prompted by getting to dislike the backlight being at it maximum 20. It was making the picture too blown-out in dark scenes or screens, especially because I choose to have Gamma at +2 to bring out shadow detail.
A few tips I can share with others from the latest round:
-FINE COLOR ADJUSTING (inexpensively): if you have no blue mode or blue filter glasses, or an expensive meter, you can still do some admittedly less accurate fine color adjusting (white balance) by eye. The trick is to dial up a grayscale pattern (AVS disc, Misc. Patterns, A1) and go into the RGB gain/offset menu and deliberately go too far in either direction of the middle 25 on one or another slider (I had luck beginning with R-Gain) and work your way toward neutrality based on what you see. Eventually you'll get to a point where the greys especially will appear more or less neutral, not too "hot" or "cold". Then switch to Misc. Patterns A3, the color step chart, and readjust to try and get as close to clear gradients on the high ends of the steps as you can. Blue is VERY hard to get right on this set - people are right when they say these sets are biased too cool in color temp. But after the adjustment whites and skin tones really benefitted. And don't forget that the master Color level can be important too. It may need to go up or down which affects everything else. I like to push it as far as it will go on the color step chart as a last adjustment, without making things bleed into one another.
-SHARPNESS - the AVS chart under Basic Settings, #5 which shows you the overscan pattern is also very useful for adjusting this. Look at the fine curved/straight line patterns in the upper left quadrant. If sharpness is too low, you won't be able to make out many of these. If too high (much easier to go in this direction of course) you'll see unnatural "moire"
patterns forming in them. You likely won't eliminate moire completely, but you can minimize it.
Also, after much deliberation, I've reverted back to allowing my Blu-ray player to output in progressive - but to me Auto Motion Plus has one acceptable setting (besides Off, of course) and that's it - Clear. If it even works for Netflix, it's got to be the one. Everything else is a distortion.