I posted on AVS as well but I was unable to change OLED Light, Contrast and Gamma after the H3 was installed and later discovered it was the HDR doing it so I had to power off the LG 65EF9500 UHD/4K OLED, unplug the HDMI cable and then powered the LG on to do the picture adjustments as I didn't want to kill the tuner buffering for a channel I was watching, then powered off to plug the HDMI cable back in. Is there a way to manually turn off the HDR on the tv? Also, can HDMI be unplugged/plugged with the TV still on? Also, does the H3 still do nightly reboots? I couldn't tell as I had a autotune at 2AM kicking in so the H3 was not in standby by the time I turned on the tv which is later in the day.