Yes Ed that was my point. Of you can get near true black and true white, and all the shades in between, you can dark shots with so much more detail. This is what I line about the 4k hdr footage. The wow voberaint animal shots are great, but they was great for demoing HD also. I have the Attenborough blue world (or whatever it is called on dvd and blue Ray, and if I had an hdr TV I’d probably get that too, as its a good way to show great content. However, the true greyness of more colours /shades, is non the dark screens.thatvos where you’ll appreciate it. But it doesn’t make great demo stuff.
The 4k hdr plus log fire demo, that too was once a HD demo back in the day. You had The fire burning channel and the discovery channel.
Sport is good in 4k too, I don’t know if hdr would enhance it though.