The 65QNED869QA is a 65 inch 4K TV from LG, launched in the year 2022. It features a True 10-bit IPS panel. It can achieve a max resolution of 3840 x 2160 with a refresh rate of 120 Hz and pixel density of 68 ppi.
Picture Quality
After screen size and resolution, the next important feature of a display that defines picture quality is Color Gamut.
This TV doesn't provide a color gamut specification, so we have to make an assumption based on its panel type. Now, since the TV features amassive 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. The color quality on this TV will be Lifelike! Meaning it will produce accurate colors out of the box.
What Color Gamut means ?
Color gamut spec of a TV indicates the range of colors that the TV can produce.
Put Simply, this specification tells the ability of a TV to produce accurate colors. A panel with low gamut coverage will miss out on some colors (such as deep red), so the image produced will look "washed out" in colors.
It is specified in different units - sRGB(most popular), NTSC, DCI P3 to name a few. It is upto the manufacturer which one they choose.
But don't worry, here is a chart that you can use to choose a TV with good color accuracy.
Other than color accuracy, you should look at the static contrast specification as it influences the picture quality substantially.
What is Static Contrast ratio ?
A TV with low static contrast ratio will not produce deep enough blacks and can bleed backlight as in the below image:

The above TV's static contrast is 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More is better.
Also note, 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, so 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 features a static contrast ratio of 8000:1., good enough to display deep blacks and eye-catching visuals. For the record, it also comes with local dimming technology which is a plus.
HDR is also supported on this TV in form of Dolby Vision, HDR10 Pro, HLG (Hybrid Log Gamma) and Dolby Vision IQ.
Coming to brightness, the peak brightness the TV can produce is 250 nits. The backlight of this TV is powered by Mini LED technology.
Gaming Performance
Now if you are planning to use the TV other than watching videos — like as a PC monitor or for gaming purposes, you would want to get a TV with lowest input lag. For gaming however, both the input lag and response time impacts the performance.
Sadly, there is no specification for input lag on this TV. Now, as 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 display. 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 has an input lag and response time of < 20ms.
Ergonomics and Dimensions
Now, speaking of ergonomics — VESA mount is supported on this TV with an interface size of 400 x 400 mm. Swivel, Tilt or Pivot features are not supported on this unit.
The width of this TV is 57.17 inches while its height is 35.83 inches.
In terms of thickness, it is 1.77 inches thick.
Overall the TV weighs 31.9 KGs including its stand. Without stand, it weighs 30.2 kgs. So plan your space accordingly.
Hardware and Audio
The chipset of this TV is powered by Quad Core CPU. However, we could'nt find any info on the RAM on the TV's specsheet.
To power its UI, the TV runs webOS 22 Operating System.
For display connectivity, there are two HDMI 2.0 ports and two HDMI 2.1 ports on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x CI+ 1.4, 1x Antenna (RF) (female), 1x Satellite In (F-type female) and 1x Ethernet RJ45.
For wireless connectivity on this TV, you will have — Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
Speaking of speakers, LG has provided 2 x 10W built-in speakers on the 65QNED869QA. It also comes with a built-in subwoofer. So you don't have to invest on any external sound system.
As for power consumption, on average, it uses about 108 Watts and on standby, it uses 0.5 Watts.
For powering this unit, you will need an 220 V - 240 V/50 Hz - 60 Hz outlet.