I had an Apple TV 4 connected to my LG 4K TV and it worked great with a good quality but old HDMI cable. After upgrading to Apple TV 4K HDR, I noticed occasional video or audio cuts - very brief but annoying. The Apple TV cable test function passed. Based on the reviews here, I decided to try the Atevon 3.3ft HDMI Cable. When I installed it, I rechecked the Apple TV cable, which of course passed. He also passed the 4:2:2 test. Since installing this cable, there have been no glitches or interruptions in picture or sound. So don't blame the Apple TV 4K or the TV if you're having video issues. All you need is a quality cable. I highly recommend Atevon cables.
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