With what Ive researched so far, HDR, HVEC, 2.0a and HDCP 2.2 are a must
In a 65" the Panasonic TX-65CZ952B is the best out at the moment, but its £7,999
Apparently is shares the same panel as the LG 65EG9600 at £3,999 and that has received some cracking reviews as well. Both of these are OLED
Going to 75" you have the Samsung JS9500 and the Sony x94, x93, x85. All meet the above criteria out the box, or via an update
Thats as far as Ive got. Still researching.
The LG EG9600 is winning at the moment due to the reviews, the OLED screen, response time, and the fact it has passive 3D