For our review of the LG B6, we used the following calibration settings. These work well with everything except for gaming which requires a few extra tweaks. To reduce input lag when playing games, label the input icon to 'Game Console' and change the picture mode to 'Game Mode'.
For watching movies, TV shows and sports, start off by selecting 'Expert (Dark Room)' as the 'Picture Mode Settings'. This provides the closest result to our calibration goal.
Adjust the 'OLED Light' to match your room environment. For brighter rooms this will need to be increased. Not that this does not affect the colors, only the luminance of the display. We then increased the 'Contrast' to 100 which seemed to help with our calibration. We adjusted both the 'H Sharpness' and the 'V Sharpness' to 0 so there wouldn't be any over-sharpening.
Leaving 'Color' and 'Tint' to the default values also provided the closest result to our calibration goal.
We turned off all the processing settings. We also put the 'Color Gamut' to normal but note that when the TV detects HDR content the color gamut will automatically swap to 'Wide'. We also set the 'Gamma' to 2.2 as it helped our calibration, but if you find that the blacks are crushed you can use 'Gamma' 1.9.
In the 'White Balance' settings we put the 'Color Temperature' to 'Warm2'.
The following are the results of the white balance and colorspace calibration on our unit. They are provided for reference, and should not be copied as the calibration values vary per individual unit even for the same model and same size as the TV we reviewed due to manufacturing tolerances. If you want to try them you will need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.