Launched in the year 2022, the 86UQ80006LB is a 86" 4K TV from LG. It features a 10-bit IPS panel.
It can display a maximum resolution of 3840 x 2160 @ 60 Hz with a pixel density of 51 ppi.
Picture Quality
After screen size and resolution, the next important spec of a display that impacts picture quality is its Color Gamut.
This TV doesn't provide a color gamut specification, but don't worry, we have other means to guess that. As this TV features a big 86 inch screen, it won't come with a cheap panel, so here we can assume its equivalent sRGB coverage to be 90-100% or above. Undoubtedly The color quality on this TV will be Lifelike! It is capable of producing color accurate images.
Understanding Color Gamut
Color gamut specification of a TV is the measurement of the range of colors that the TV can produce.
A TV with poor color reproduction will produce undersaturated/washed out colors that will spoil the immersion.
Different manufacturers use different units to define color gamut. Viz — sRGB (standard RGB), NTSC 1953, DCI P3 Adobe RGB and rec.2020.
But don't worry, here is a chart that will help you choosing a TV with good color accuracy.
Next in the list of important specifications is Static Contrast.
What is Static Contrast ?
There are 2 types of contrast specifications for a TV. Static and Dynamic. We are interested in static contrast ratio. Dynamic doesn't matter much.
This defines the intensity of black levels. That is, a TV with static contrast ratio < 1000:1 will produce black images something like this:

Moreover, such TVs are likely be prone to backlight bleeds that will affect your experience — as shown below.

Also, static contrast ratio and resolution go hand in hand when it comes to details. To put it into perspective, a TV with low contrast ratio will produce less shades of colors, thus lesser detail overall.
If given a choice, I will prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
There's no mention of this specification in the TV's official specsheet. So we have to make an assumption again based on the TV's other specifications. FYI — IPS panels come with a static contrast ratio between 700:1 - 1500:1. Now, for a 4K TV, we can imagine the ratio to be >= 1200:1.
HDR10 Pro and HLG (Hybrid Log Gamma) are also supported on this TV.
As for brightness, the peak luminance it can achieve is 250 nits. The backlight of this TV is powered by Direct LED technology.
Gaming Performance
If you are planning to use your TV solely for content consumption, you can safely ignore these specs. But if you are also going to use the TV for playing games or use it as a PC monitor, you should get a TV that features the lowest input lag and response time.
Sadly, there is no specification for input lag on this TV. But as this is not a cheap TV, we can expect an input lag of less than 20ms.
What is Input lag ?
This lag is the amount of time at which your device inputs changes the content of the TV. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
Although for better experience, get a TV that has an input lag and response time of < 20ms.
Ergonomics and Dimensions
Now, coming to ergonomics — If you plan to wall mount the TV, you can make use of the VESA mount provided with this TV, which by the way has an interface size of 600 x 400 mm. Swivel, Tilt or Pivot features are not supported on this unit.
Vertically, the TV measures 86 inches and horizontally 75.87 inches. In terms of thickness, it is just 2.36 inches thick.
It weighs 45.2 KGs and an additional 0.4 kgs including stand.
Hardware and Audio
The chipset of LG 86UQ80006LB is powered by a Quad Core CPU. There is no data about the RAM on this TV.
The Operating System on this TV is webOS 22.
For display connectivity, there are four HDMI 2.0 ports on this TV.
To connect USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x Satellite In (F-type female), 1x Antenna (RF) (female), 1x CI+ 2.0 and 1x Ethernet RJ45.
Wireless connectivity options on the LG 86UQ80006LB include a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth 5.0 and DLNA.
The Audio unit of this TV is powered by 2 x 10W built-in speakers.
Speaking of power consumption, on average, this TV uses 171 Watts. On standby, it uses 0.5 Watts.
For powering this unit, you'll require an 220 V - 240 V/50 Hz - 60 Hz outlet.