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Dolby vision should work through the HDMI 1 connection, but not the other three HDMI ports.
Sorry, there was a problem. Please try again later.Dolby vision works all the time, regardless of resolution signal sent to it (I think). I did use Netflix 4k via it's own apps vs Xbox One S Netflix, connected via HDMI 1. Same quality. I do try to compare HDR blu ray with 4k blu ray. It's very hard for me to see the difference, especially on still images. so, I think the TV just makes the picture stand out as best as it can. I do have an old Roku attached to HDMI 2 and quality of Netflix drops using it (Roku, not 4k supported). However, the best judge of 4K HDR TV's is going 65inches or higher. However, 55inches is the only thing that fit my built in cabinet from early 2k, so I'm stuck with it.
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