Reddit reviews Sony XBR49X800D 49-Inch 4K Ultra HD TV (2016 Model)

This is probably the best 4k HDRtv for the price right now. Still kinda expensive.

I personally have this Sony and love it (so far)

Another option is the Sony X800D, $650 for the 49 inch model, gets slightly lower rating as the Samsung on RTINGS.com for some things but equal for gaming and 4K HDR. I have one and I'm happy with it.

https://www.amazon.com/Sony-XBR49X800D-49-Inch-Ultra-Model/dp/B01FWIEO6A
http://www.rtings.com/tv/reviews/sony/x800d

This one. It's known as the x800d in the USA

Sony Bravia KD49XD8088 49-Inch Android 4K HDR Ultra HD Smart TV with TRILUMINOS Display, PlayStation Now, Google Cast - Silver https://www.amazon.co.uk/dp/B01IF521AI/ref=cm_sw_r_cp_api_zkIiybB2P13NK

Found link on US Amazon
https://www.amazon.com/Sony-XBR49X800D-49-Inch-Ultra-Model/dp/B01FWIEO6A

I think I'm going with this one. Been looking for a few days. HDR 10, 4K 49 inches. 33 ms input lag with HDR on. Looked gorgeous running a demo I Best Buy. In my budget. Hope price drops by November!

https://www.amazon.com/Sony-XBR49X800D-Class-Ultra-Black/dp/B01FWIEO6A

Amazon has the 49" for $648 ($150 off!!!), so at only $50 more than the 43", that'd be the one to get.

https://www.amazon.com/gp/product/B01FWIEO6A/ref=crt_ewc_title_dp_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Yep! That's one of the three I'm looking at.
The other two I found are the Samsung KU6300
https://www.amazon.com/gp/product/B01E69VEE6
It has a phenomenal pricetag, and is a great all around contender with low latency and fantastic image qaulity, but it's color gamut is poor enough to make it questionable whether it really counts as an HDR tv. I've seen some rumors that a hotfix is coming that will fix the color gamut, but I think that's a load of crap.

and the Sony X800D
https://www.amazon.com/gp/product/B01FWIEO6A
Fantastic color gamut solid all around performance and a good but not great pricetag, BUT it only comes in 43 and 49 inch, and 49 is my minimum size.

It just feels weird to me to go out looking for a new TV and only find 3 real options with two of them coming from the same manufacturer.

Thanks for the suggestions. The TV, a Sony XBR49X800D, definitely supports HDR @ 4K. I can watch 4K with HDR on the TV's Netflix app, for instance.

I considered that the issue might be the receiver, so I did try connecting the PS4 directly to the TV but got the same results. The TV's firmware is updated, although I suppose I should check to see how (or if) the receiver's can be updated as well. The receiver, an Onkyo - I forget the model offhand - is supposed to support 4.4.4 passthrough, so also not likely to be an issue. Since bypassing the receiver still didn't produce 4K HDR through the PS4 Pro I don't think the receiver is contributing to the problem. I even dropped $12 on a pair of new HDMI cables just to be absolutely certain that I had all the right hardware. I've tweaked the settings according to a dozen different sites and videos, all with zero success. At this point, short of getting a professional installer to look at it, I'm stumped.

https://www.amazon.com/gp/aw/d/B01FWIEO6A/ref=mp_s_a_1_1?ie=UTF8&qid=1473474441&sr=8-1&pi=SX200_QL40&keywords=sony+49+inch+4k+tv&dpPl=1&dpID=41kTUHJonPL&ref=plSrch

I have the 43 inch version and like it a lot 4K with HDR.

X800D - 49" - $750 @ Amazon - you have 30 days to return without penalty, so you can still pick up the X800E if this one doesn't work for you.