4 x HDR modes via latest firmware is the big difference (HLG,HDR10+,Dolby Vision, Technicolour).
Thanks for the headsup though but I just spent £649
on an LG Super UHD Nano Cell 49"
http://www.lg.com/uk/tvs/lg-49SJ800V which I am hoping is the answer I am looking for
and its £300 cheaper than it was a few months ago! Its simply not possible to buy a perfect HDTV even OLED or QLED ultra high end models costing £2-3K have banding issues & quite often get returned by unhappy buyers so its a bit of a lottery to get a good one.
I expect a good one for the price of these things or will RMA until I am happy as that's what the DSR is for on these high end items!
Seen Xbox1X Rise Of The Tomb Raider running on an LG OLED with HDR enabled looks amazing
one of the best looking HDR enabled games right now!