I wasnt really aware of any of this so I thought id give a heads up to anyone looking at buying a new 4K TV especially in the event of new XBOX One S, Playstation 4 (HDR Update) & Pro.
If I hadn't found out any of this I would be pretty annoyed to find out my TV did not support HDR gaming, so wanted to pass it on.
So you would think you could buy a TV that simply states its 4K with HDR and you woudl be set, but it seems its a goddam minefield of new tech with many companies competing for the HDR Standard.
So lets start with what HDR is,
Basically the TV can reproduced the contrasts of light and dark much more clearly this in turn displays a wider and richer range of colours, much brighter whites, and deeper, darker blacks,
Now for your TV to display this it needs a 10-bit panel, Blu ray use 8 bit which is about 16 Million colours, so the additional colours that 10 bit provides greatly reduces the gradation between colours, giving a massive more dynamic look.
But it just gets so much more complicated, the TV needs to produce 'P3' range of colours! and I'm not even going to try and understand that, as well as be able to have a certain level of 'nit' brightness above the standard brightnesses or above PEAK brightness.
The standard states;
More than 1,000 nits peak brightness and less than 0.05nits black level.
Confused yet? Because it gets worse..
Your TV needs to comply with HDMI 2.0a standard and there is no HDR standard set yet so we have a choice currently
Plus whatever standard any company decides it wants too, so Samsung could decide to make a proprietary HDR as could Sony etc..
 MSK points out Sony wont seem to release any info on what's actually what with their TV's
Now just to make things worse, some TV's that have 8 bit panels are HDR Ready, just the set has to be programmed to read the meta data in HDR content! And I am sure there is even more to it than that that I haven't included, so with that I am sticking to 1080p until this idiocy is sorted out. :)
But if you still want 4K and HDR I suggest you do your homework first.