[Warner306]

So now that i have everything working and i think working pretty well.. i have to say 1080p source content looks pretty darn sharp at this point.. tv shows included.. i decided to compare a regular bluray movie and its 4k counterpart(hdr).. it was actually surprising to me at how close the resolution was.. there was really no obvious difference in resolution.. (The Martian as an example).. however.. the colors did look better, though of course darker, with maybe muddier blacks in HDR on my x900 sony.. i was tempted to boost the gamma or black level but didnt want to ruin the picture for non hdr content.. i suppose the similarly might be that many movies arent actually shot in 4k, but 2k, unsure or maybe using a dedicated ($500) uhd player things might be different.

HDR content has the advantage of being brighter and having more steps between luminance values, which can make it look sharper because there is more depth to the image. Your x900 has more than enough brightness to do good HDR without much tone mapping.