Dark HDR scenes on my Samsung Frame TV started showing bands of color where smooth gradients should've been. Its a classic sign of a bandwidth issue, or so I assumed. I ordered a new certified cable, swapped it in two days later, and got the exact same banding. The fix turned out to be four menus deep on the TV — nothing to do with the cable at all. Once I knew the name, I started spotting the same bottleneck on my TCL Roku TV and Hisense Canvas. HDMI hides more capability than most setups ever touch, but most TVs ship with ports configured to defeat that capability out of the box. The cable doesn't always deserve the blame.
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