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According to the specs on the Vizio website*, the model M658G1 comes from the factory with HDR10+ support already installed: "HDR Version: Dolby Vision, HDR10, HLG, HDR10+" * https://support.vizio.com/s/article/M558-G1-Model-Information-EXT?language=en_US
Sorry, there was a problem. Please try again later.I just bought this tv yesterday and it does support HDR10 as well as 4k 10-bit. It supports everything my xbox one x can throw at it as well as my $2k gaming pc.
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