FWIW 49" -75" 2016 Samsung 55KS 7000 /55KS 8000 (US) is way better than any Sony TV below an X930E with one exception being it is ~ tit for tat with Sony X900E
Also Better is probably any Samsung in those 6xxx 4K SDR lines and certainly the 2017 Samsung MU7000 /8000(us) but they fall far short of the 2016 4K HDR 1000 Quantum dot models above
I would not buy anthing like a downstream Sony below X900E given my 2013 Sony Bravia was not all that and has great blacks too but an abysmally cheap not bright 60Hz dither panel with acute color banding and moreover what I know beyond that about all the Sony lines
My tech savvy adult son and I just finished up putting all new direct LED backlight strips in my low rent 2013 Sony 40" Bravia I bought in 2014 which entails entirely disassembling the LCD panel and the TV and $20.00 of new savage parts from Ebay.
I will watch it in here for one day (where it used to live ) until my new swinging wide color 4K HR 1000 55" Samsung gets here . It looks like a new penny and not bad at all for a 40" 1080p LCD it's cheap 6 bit + frc dither panel notwithstanding .
I put the dreadful ,old and small Dynex back in the garage I was using temporarily in here since my 5015 Sony 55X850C went dark some weeks ago
I would steer clear of low rent Sony TVs like that Sony 49 XD 4305 they usually have 60/50Hz color banding/motion judder and
cheap dither panels in then you won't see so much of on the
carefully crafted high bit rate store factory demo loops >>>>like my 2013 Sony Bravis 6 bit + frc 1080p rubbish panel .
Sony usually does that cheap panel trick on anthing below the X850 (X85) models and they may have ruined and downgraded 2017 X850E that should have been the 2017 X900E .
Amazon logically uses that 55X900E for the 2016 X850D new model in US now anyway given there is no 55" X850E here in the states and the Camel camel .com Amazon seasonal price history tracker is entirely commensurate with all that .
After a misdiagnosed warranty claim as I suspected given the symptoms progressions, I got inside my basically dark 2015 4K HDR Sony XBR 55X850C with my DVM after I found out I can keep it and I get a new better TV .
The clueless warranty company provided board changer reported a bad panel when the symptom progressions clearly indicated an LD board section (LED driver section ) and NOT the panel . I let it ride, I knew I going to get a new $00 TV from the from them at that point and if I get to keep the Sony 55X850C I can fix it cheaply bu ekter eay I get a new better TV because I was about to take an 2016 Sony X850D with an IPS panel and if needed just go out and get up to a Sony A1E OLED out of pocket (cash or EFT same ) and take my coverage amount or a better LCD TV which is the shipping now 4K HDR 1000 Samsung KS7000 uk/KS 8000 usa that is good up to the Sony X930E .
After a simple,swift and proper diagnosis of my 55X850C with my DVM I can replace a T3 transistor , diode and a transistor loading resistor on the LD board section at a few $$ for those and my 55X850C is like new again and in another room here when the parts get here from Digikey in a few days .
I have what is essentially a new and better Samsung 55 KS 7000 /55KS 8000 (US) for a few $$ and a simple LD board section repair and lots of duress and waiting one month instead of a promised 10 days from a wholly misfeasanant warranty company with Soviet Union style bureaucracies and hierarchies there and a bulk freight shipper that lost my TV for 4 days I confirmed will be here tomorrow if all goes well .
I worked benching TV in the late 60's to 1970 when fixing analog TV was far more difficult and complex at the repair levels,you had to know something far beyond swapping boards that may not be the right one and flagging the panel when it is not because you are clueless .
I changed careers entirely out of electronics but I keep up and tinkler fix things now and then including LCD TV's and PC's and upgrade frequently .The fundamentals have not changed at all and LCD panel and LCD TV operation and variables arent that hard to understand at all especially if you have related knowledge.