Am I the only one who doesn't have HDR or DV triggered by the 4K content (i.e. Wonder Woman)? I get Atmos sound but the video content is delivered as SDR per the diagnostic on my LG display. The other XFINITY apps (Netflix etc) at least trigger HDR.
It is in UHD not HDR so it won't show HDR in in TV settigs like Shows in HDR on Netflix. They are both 4K but not sure the exact difference but HDR is supposed to be darker to show more color and HDR is darker on my Samsung and will say HDR. Somebody probably will add to the difference.