Your HDMI cable probably isn't the bottleneck — this setting inside your TV is

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...

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