4K TV to avoid, the LG 55 inch UH770V:
The 55UH770V scores high on raw shelf appeal. Its crisp metallic form and promise of both 4K and HDR picture thrills make its £950 price look pretty tempting. Its charm is ultimately severely dented, though, by a sub-par picture performance, especially with HDR. 3/5
http://www.hdtvtest.co.uk/news/55uh770v ... 064369.htm
HDTV Test wrote:LG has improved a number of things on the UH770V compared with previous LED LCD offerings from the company. The TV’s native black level was the deepest yet we’ve measured from an IPS LCD panel, though still not a patch on most VA LCDs, let alone self-emissive displays like plasma and OLED televisions. The 55UH770 could be also calibrated to highly accurate levels; backlight management was better than previous iterations (at least in SDR); and input lag had been cut down to allow for more responsive gaming.
But at the end of the day, the LG 55UH770V’s Achilles’ Heel was always going to be the limited contrast performance of IPS screen technology, especially as the industry marches relentlessly towards HDR. The display’s shallower black level meant that its backlight engine had to work much harder to produce convincing blacks and HDR brightness at the same time, resulting in seriously distracting vertical blooming and luminance fluctuations. Throw in frame-skipping problem during 4K Blu-ray playback, and we think there are better alternatives on the market albeit at slightly higher prices, such as the Panasonic DX750, or better yet, the Samsung KS7000 (review pending). Of course, if budget isn’t an issue, by all means go for one of LG’s outstanding OLEDs.
I'm glad they're starting to review some of these cheaper 4K sets as they always review the top end but avoid the more entry stuff. And I don't trust What HiFi magazine whatsoever.