I've calibrated my TV (Hisense 55U68KM) and everything looks as good as possible. But I'm seeing a lot of banding in dark areas. Technically, by the numbers and results in calibration I should be fine. What reasons would cause banding when the video isn't some massively compressed garbage signal? Could the panel somehow still be too bright despite having done proper brightness, contrast, gamma, and white level calibration? Should I just turn downbrightness or something until they go away? I can't tellmy display is too hot or if this is banding I'm going to see no matter what.