Try going to Settigs, System, HDMI & CEC Functions... if HDMI 2.0 Format is set to Standard, try changing it to Enhanced... this will enable the TV to display HDR10 and Dolby Vision as well as various other 4K features
I grabbed the Hisense 55b8000 about 2 weeks ago from takealot for R7999... I'm extremely impressed with the performance I'm getting from it, using its default settings... find that dynamic provides beautiful colour. My primary content is gaming on the xbox one x, however do use some of the...