The 86NANO756QA is a 86 inch 4K TV from LG, launched in the year 2022. It features a 10-bit IPS panel.
It can achieve a maximum resolution of 3840 x 2160 with a refresh rate of 120 Hz and pixel density of 51 ppi.
Picture Quality
After screen size and resolution, the next important spec to look for in a display is its Color Reproduction (defined by its color gamut specification).
LG did not provide a color gamut rating for this TV. 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. The color quality on this TV will be Lifelike! It will produce accurate colors AS IT IS intended.
What Color Gamut means ?
Color gamut specification of a TV is the measurement of the range of colors that the display can display.
A panel with poor color accuracy will produce undersaturated colors that will spoil your immersive experience.
Different manufacturers use different measurement standards to define color gamut. Such as — sRGB (most popular), NTSC, DCI P3 Adobe RGB and rec.2020.
But you don't need to worry about that, below is a chart that you can use to choose a TV with good color accuracy.
Next in the list of important specifications that will impact your experience is Static Contrast.
Understanding Static Contrast
There are 2 types of contrast specifications for a TV. Static and Dynamic. We are interested in static contrast ratio as dynamic doesn't matter much.
This tells the intensity of black levels. That is, a TV with static contrast ratio < 1000:1 will produce black images something like this:

Apart from this, such TVs are likely be prone to backlight bleeds that will rob 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, so lesser detail overall.
LG did not list a static contrast ratio specification for this TV. Again we have to take a guess based on the TV's other specs. Most IPS panels come with a static contrast ratio between 700:1 - 1500:1. As for a 4K TV, we can assume the ratio of LG 86NANO756QA would be 1200:1 or above.
HDR is also supported on this TV in form of HDR10 Pro and HLG (Hybrid Log Gamma).
As for brightness, it can go as bright as 250 nits, which is powered by Direct LED backlight.
Gaming Performance
If you aren't planning to game on this TV, 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, make sure to get a TV with the lowest input lag and response time.
Unfortunately, LG did not specify the input lag on this unit. But as this is not a cheap TV from LG, input lag on this TV could be 20ms or below.
What is Input lag ?
This lag is the latency at which key-presses/mouse movements changes the content of the TV. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
For best of both worlds, get a TV that comes with an input lag and response time of less than 20ms.
Dimensions and Ergonomics
Vertically, the TV measures 86 inches and horizontally 75.87 inches.
In terms of thickness, it is 2.36 inches thick. It weighs approximately 45.2 Kgs and an additional 0.4 kgs if you include stand.
Speaking of ergonomics — VESA mount is supported on this TV with an interface size of 600 x 400 mm. There is no Swivel, Tilt or Pivot feature support on this TV.
Hardware and Audio
The internals of LG 86NANO756QA is powered by a Quad Core CPU. There is no mention about the RAM on this TV.
Speaking of OS, the LG 86NANO756QA runs webOS 22 Operating System.
For display connectivity, there are two HDMI 2.0 ports and two HDMI 2.1 ports on this TV.
To connect USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x CI+ 2.0, 1x Antenna (RF) (female), 1x Satellite In (F-type female) and 1x Ethernet RJ45.
Wireless connectivity options on this TV include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
For audio, LG has provided 2 x 10W built-in speakers on the TV.
In terms of power usage, on average, this TV uses 166 Watts. On standby, it takes 0.5 Watts.
For powering this unit, you will need either a 110V or 220V outlet @ 50Hz-60Hz.