Have been looking at 4k TVs for some time now and with the impending PS PRO release in November I've finally decided to take the plunge. The folks over at Digital Foundry are gurus on gaming and screen technology and this Panasonic made the top of their list for its low input lag, price point and HDR capability. http://www.eurogamer.net/articles/digitalfoundry-2016-the-best-4k-screens-for-hdr-gaming
I've checked this TV out in a local retailers and the image quality really is outstanding. Price has recently dropped again from circa £950 and you get the 5 year warranty in Currys.