For the most accurate picture, use one of the 'Calibrated' picture modes. Disable 'Auto Brightness Control' and adjust the 'Backlight' to your preference. Leave the 'Brightness', 'Color', 'Contrast' and 'Tint' as they are, and set the 'Sharpness' to 0. Adjust the 'Color Temperature' depending on your preference. Set 'Black Detail' and 'Active LED Zones' to 'Off'. You can try to enable 'Clear Action' for better motion, but disable it if you dislike the flickering.