Hi everyone- I set up the ATV4K in HDMI 1 with the Monoprice HDMI 2.0 cable from Amazon. It is plugged directly into the Apple TV 4K and I've turned on the UHD option for HDMI 1 required for HDR. HDR10 content appears as expected, but Apple TV picture is grainy when testing the Dolby Vision HDR. Has anyone else had experience setting up this combination or do you have any suggestions? Thank you.