The LG UF8500 4k UHD LED TV has worse picture quality than average, especially in a dark room. The color accuracy at an angle is good though, as are its smart features.
The LG UF8500 looks like a high-end TV. The borders are thin and the TV is slim. The stand is very wide, but the TV rocks back and forth when you push it.
Similar to the LG UF7700, the local dimming is a bit useless. The zones are really big.
The gray uniformity is bad. The corners and the edges are darker than the rest. There are also a lot of darker lines and spots everywhere.
Due to its IPS panel, it maintains its color accuracy even when viewed at an angle.
Update 01/06/2017: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results from 2016 TVs.
Like every other LG IPS TV that we have reviewed, the black uniformity is bad. The corners are brighter than the rest. We tried fixing the issues by rubbing the screen with a soft cloth, but we couldn't make it better.
720p content looks good without too much fuzziness or over sharpening.
Its semi-gloss finish reflects more light than average. At least the direct reflections only have a small rainbow around them.
The maximum luminosity, when increasing 'Backlight' to the max, is average-good.
The passive 3D is great, with no crosstalk at all (assuming you sit relatively in-axis).
The response time is average-good. All transitions take about the same time, which results in a darker outline following and leading moving objects. The backlight isn't flicker-free; it uses a PWM, even at maximum brightness.
It can play 24p movies judder-free, except when they are transmitted over 60p. 'TruMotion' is the soap opera effect feature.
The input lag varies a lot, but all modes are about the same, so you don't need to be under 'Game', as long as you turn off 'TruMotion'.
It doesn't support 1080p @ 120 fps, but it does support chroma 4:4:4 if you label the input as PC. To get 4k @ 60hz @ 4:4:4, you will also need to turn on 'HDMI Ultra HD Deep Color'.
Good bass response for a TV, and the frequency response is good, too. But the TV doesn't get loud at all.
Good distortion values at low volumes, but poor results when under heavier loads, even though the TV doesn't get loud.
The LG UF8500 has the latest WebOS smart TV platform, which is great. The remote can also be used to control the on-screen pointer. You can see our full review of WebOS here.