I’m seeing really bad blocking / low res patches when watching HDR content. It’s native HDR in Netflix My ATV4K is set to SDR 4k @ 60hz (uk) but with range and frame match content set to on When watching a HDR show with a bright scene (like a white sky with a gradient) I get terrible blocking / low res patches with some colour banding Watch exactly the same scene via the Samsung TVs inbuilt app also in HDR, everything is fine. So that rules out the panel and picture settings. My HDMI input is set to UHD colour and the only other thing is the cable. I don’t have any new cables. All the ones I have at 2-3+ years old. But they do say high speed with Ethernet. Any ideas what it could be?