I wasn't going to go 4k until there was more content, but a virus changed my mind. I have the 43" version:
https://www.sony.com/electronics/televisions/xbr-x800h-series I have quite a few peripherals to get working though. My 4k devices are a Roku Ultra (4660RW), an Amazon Fire TV and a TiVo Mini VOX. Right now everything feeds a Yamaha RX-V867, but that's 2k, so I need a 4k AVR. I love the AVR and it works as good as the day I installed it. It has 5 HDMI inputs and the new models only have 4. So some changes are required. It's configured for 5.1, and my current viewing space, sort of small, would be good enough. I also have three TiVo Roamio units, a TiVo Premiere and Sony S6500. The Roamio boxes are only 2k. My cable is encrypted, so no need for direct TV viewing. Right now my cable feed has changed 107 of the channels to clear QAM, I can watch them for the rest of the month.
Funny: Amazon sent me a
49X950H by mistake. I would have kept it, but my space is just too small. It took a week to fix that.
No power switch. I miss that.
More to come.