Found a solution!! At least for those using Apple TV... A Samsung is NOT listening to customers needs, I figured out a solution that is giving me, finally, a total black (like an off screen) when listening to music over my Apple TV 4K. What I did is pretty simple: selected Pictures as the screen saver (instead of Aereo or other fancy options). Created a pictures folder with only one picture, which happens to be a total back image. The screen saver displays only that image and voila! I finally have the screen off, or almost off, which only illuminates for a couple of seconds to display song/artist name each time a new song starts, which is fine with me. Hope others find this tip useful.
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