The LG UF7700 4k LED TV has great smart features and good color accuracy at an angle. However, its picture quality when sitting in front is sub-par, both in dark and bright rooms. The contrast ratio is low, it has a few uniformity issues, and it reflects more light than average.
This LG TV (except the 70") has an IPS panel. The contrast ratio is low, which results in poor blacks when you have the lights off.
It is equipped with the local dimming feature. The zones are really big, so as you can see in this video, it isn't very effective.
The edges of this LED TV are darker than the rest, and it has noticeable dirty screen effect.
The main advantage of an IPS panel like the one found in this LG is the color accuracy at an angle. Instead of losing saturation, the picture just darkens when viewed off-axis.
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.
The corners are noticeably brighter than the rest of the screen.
The LG UF7700 reflects a lot of light. There are also a few rainbows around bright objects.
The maximum luminosity is average. Because the screen reflects a lot of light, that means this TV isn't ideal for a bright room.
This TV's motion blur is slightly worse than average. Apart from in some video games, you likely won't notice it.
This is a 120Hz TV with motion interpolation. It does support 24p playback for movies, and even do the 3:2 reverse pulldown over 60i, but it somehow couldn't do it over 60p.
The input lag is high and varied a lot (from 55 to 65 ms). PC, Game, and Expert1 all had the same input lag when TruMotion was off. When TruMotion was turned on, the input lag increased to 113.6ms.
To enable chroma 4:4:4, set the icon of the input to PC. For 4k @ 60hz @ 4:4:4, also enable UHD Deep Color.
Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.
Not only this TV doesn't get loud, but the frequency response is quite poor too. Especially when pushed hard. The low-end cut off is decent for a TV however.
Acceptable and stable distortion levels throughout the range of the TV, but it doesn't get loud.
The LG UF7700 isn't a great 4k TV. The picture quality both in a bright and dark room is not good. It also has high input lag and average motion blur for video games. In terms of positives, the smart features are great, and it has a great viewing angle.