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LG 49UH668V review

 Review: June 2016  

Rating: 4 stars

In a nutshell: The LG 49UH668V is a good TV for family viewing, with a big 4K screen and HDR10 compatibility, plus all the benefits of Smart TV - BBC iPlayer, Netflix 4K and Amazon Instant Video. Colours are bright and bold, adding to the TV's instant appeal, but sports fans and movie buffs might find fault with its motion blur and lack of shadow detail.


Design & looks

The LG 49UH668V is a mid-range model in LG's UHD TV range for 2016, with mid-range looks. We found its appearance to be quite chunky overall, with a thick metal crescent-shaped stand that's quite dominating. The brushed metal bezel surrounding the screen matches the stand, and the chassis of the TV is very deep, measuring almost 8cm at its thickest point. It's a bulky TV, and quite wobbly, despite the heavy-duty appearance of the stand.

Picture quality

The LG 49UH668V is a UHD (4K) TV with High Dynamic Range (HDR) compatibility. In fact, it's a HDR Pro TV, which is LG's name for the HDR10 standard. That means this screen uses 10-bit colour for up to 1 billion colours - better than many cheaper so-called HDR TVs. The screen certainly produces bright images with vivid colours.

Unlike Samsung, Sony and Panasonic, LG continues to use IPS screens in its LED TVs. IPS screens are good at producing bright colours with wide viewing angles, and a lot of people like the way they look. There's no doubt that the screen "pops" when viewing well-lit scenes. But IPS panels suffer from two intrinsic problems - they are slow, and they can't reach the deep black levels of rival screens.

There isn't a lot to be done about the slow native response of this screen, although clever motion compensation algorithms can go some way, at the expense of introducing an artificially-smooth "soap opera" effect. We found that like most LG LED TVs, the UH668V shows motion blur that's often noticeable in fast-moving scenes.

The second problem - low contrast - has been addressed by LG with a local dimming backlighting system. This certainly solves the problem of black levels, enabling the TV to reach very deep blacks, as well as very bright colours. But the system aggressively kills off shadow detail, producing an effect similar to turning the contrast levels up too high on an old-fashioned CRT television.

So, while the TV has plenty of headline-grabbing features that suggest top picture quality (UHD, HDR10, ULTRA Luminance and local dimming), and is superficially very attention-grabbing, in actual use the problems of motion blur and loss of shadow detail can be problematic.

Audio quality

The UH668V has a typical mid-range sound system consisting of two 10W speakers with simulated surround sound. The Clear Voice III feature helps to make dialogue clear, but there's little in the way of sound effects in movies. A soundbar is definitely recommended as an additional accessory with this TV.

Smart TV

The TV uses LG's latest WebOS 3.0 operating system to provide a raft of Smart functionality. From the menu you can select channels, access catch-up TV and on-demand content, and install a range of apps. You can also control devices such as a Blu-Ray player or home cinema system from within the WebOS user interface.

Catch-up TV services include the BBC iPlayer and Demand 5. There's on-demand content from the LG Content store, Netflix 4K and Amazon Instant Video. You'll also find a web browser, social media, YouTube, and access to apps from the LG Store.


The UH668V scores well for connectivity. In addition to 3 HDMI connections, digital audio output, a combined component/composite input, and a USB, the TV can connect to terrestrial (Freeview), cable and satellite sources. Smart networking is available via ethernet and built-in Wi-Fi, and Bluetooth support is also provided. The TV handles home networking with ease, using either DLNA networking or Miracast to display content from other devices in your home, including wireless display mirroring of a smartphone, tablet, or laptop.

Conclusion - a mid-range HDR-capable TV

The LG 49UH668V could make a decent option for a family TV. It's priced fairly for a 49-inch UHD TV, and HDR10 compatibility makes it future-proof. The wide viewing angles and good daylight brightness make it a versatile option for family viewing, and the excellent WebOS 3.0 Smart TV provides the essential catch-up TV services and streaming content from Amazon, Netflix, and YouTube that a modern family needs.

But the picture quality isn't as good as we'd like. Motion blur and the aggressive flattening of shadow detail are a problem once you become aware of them, and this isn't a recommended TV for watching films or sport.

At launch, the UH668V is priced at just under £1000. At S21, we don't think it's worth that much. We'd be more comfortable paying £800 for this TV. Better still, we'd widen our search and consider the outstanding Samsung KU6470 TV instead.

LG 49UH668V features include:

User questions

Sorry - questions and comments on this page are now closed.

What kind of webcam I need for LG 49UH668V?

Asked by Alexander from Czech rep on 28th Nov 2017
Does TV Camera AN-VC400 or AN-VC500 will work?

LG content store does not work in my country?

Asked by sunny from nepal on 10th Nov 2017
I bought this lg uh688v tv from uk. But the problem is lg content store does seem to be work in nepal. What is creating this problems.

Hi which is standard tv Rec. 2020 or maybe Rec. 2100?

Asked by Seb from UK on 5th Mar 2017

See all 9 questions

LG 49UH668V user reviews

Sorry - reviews and comments on this page are now closed.