Launched in the year 2022, the 65QNED999QB is a 65" 8K TV from LG. It comes with a True 10-bit IPS panel.
It can display a maximum resolution of 7680 x 4320 with a refresh rate of 120 Hz and pixel density of 136 ppi.
Picture Quality
After screen size and resolution, the next most important feature to look for in a display is its Color Reproduction Accuracy (defined by its color gamut specification).
LG has not provided a color gamut specification for this TV. So we have to take a guess.
Considering the TV features a big 65 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 accuracy on this TV should be Lifelike! Meaning it is capable of producing accurate colors out of the box.
What is Color gamut ?
Color gamut specification of a TV is the measurement of the range of colors that the display can show.
A panel with poor color accuracy will produce washed out colors that will spoil the immersion.
Different manufacturers use different measurement standards to specify color gamut. Viz — sRGB, NTSC, DCI P3 Adobe RGB and rec.2020.
But you don't need to worry about that, here is a chart that you can use to choose a TV with good color accuracy.
Other than color accuracy, the static contrast specification of a TV holds almost equal role in picture quality.
What is Static Contrast ?
A TV with low static contrast ratio will not produce deep enough blacks and possibly bleed backlight as shown in the images below:

The static contrast ratio of above TV is rated 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More the better.
Note that, 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 show both dark gray and black as black, thus lesser detail overall.
If given a choice, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV is rated with a static contrast ratio of 10000:1., good enough to achieve deep blacks and eye-catching visuals. The panel comes with local dimming backlight which is a plus.
Dolby Vision, HDR10 Pro, HLG (Hybrid Log Gamma) and Dolby Vision IQ are also supported on this TV.
As for brightness, it can go as bright as 250 nits. The backlight used on the panel is Mini LED.
Gaming Performance
If you are planning to use your TV solely for content consumption, you can safely ignore these specifications. But if you are also going to use the TV for playing games or use it as a PC monitor, you would want to take a TV that features the lowest input lag and response time.
Unfortunately, there is no specification for input lag on this TV. Now, since this is not a cheap TV from LG, we can expect an input lag of less than 20ms.
Understanding Input lag and response time
This lag is the amount of time at which key-presses/mouse movements changes the content of your TV. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
Although for better experience, look for a TV that comes with an input lag and response time of less than 20ms.
Dimensions and Ergonomics
The TV measures 65 inches vertically and 65.55 inches horizontally.
It is 1.16 inches thick.
It weighs approximately 38.2 kilograms and 3.4 kgs extra if you include stand.
Coming to ergonomics — a VESA mount with interface size of 400 x 400 mm is provided for wall-mounting. Swivel, Tilt or Pivot features are not supported on this unit.
Hardware and Audio
The TV is powered by 4-Core CPU. However, we could'nt find any information about the RAM on the TV's official specsheet.
The UI on this TV is powered by webOS 22 Operating System.
For display connectivity, there is four HDMI 2.1 ports on this TV.
To connect USB devices, it includes — 2x USB 2.0 and 1x USB 3.0. Other connectivity ports include — 1x Satellite In (Sub — F-type female), 1x Antenna (RF) (female), 1x Satellite In (Main — F-type female), 1x CI+ 1.4, 1x IR Out and 1x Ethernet RJ45.
Wireless connectivity options on the LG 65QNED999QB include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
The Audio unit of this TV is powered by 4 x 10W built-in speakers. It also comes with a built-in sub-woofer. So you don't have to invest on an external sound system.
Now, coming to power consumption, on average, it consumes around 302.4 Watts and on standby, it takes 0.5 Watts.
For powering this unit, you will require an 220 V - 240 V/50 Hz - 60 Hz outlet.