“The 8-Series sets support HDR10, HLG, and Dolby Vision high dynamic range, but not HDR10+. Unlike some other Ultra HDTVs that convert the static metadata in an HDR10 source to dynamic metadata on a scene-by-scene basis via their own internal processing, the 8-Series sets rely on the existing static metadata in HDR10 sources.
Audio on the 8-Series TVs is specified as Dolby Atmos. Call me a skeptic regarding the ability of any audio system contained within the TV itself to do what Atmos was designed for: reproduce elements in the soundstage from all around the listener, especially from above. But I didn’t spend any time evaluating the TCL’s audio since the acoustics of the company’s test room weren’t typical of a home environment”