The 65NANO829QB is a 65 inch 4K TV from LG. It was launched in 2022. It features a 10-bit IPS panel. It can display a max resolution of 3840 x 2160 @ 60 Hz with a pixel density of 68 ppi.
Picture Quality
Now, the next important specification of a display that defines picture quality is its Color Gamut.
LG did not provide 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. The color accuracy on this TV will be Lifelike! It is capable of producing color accurate images AS IT IS intended.
What Color Gamut means ?
Color gamut specification of a display is a measure of the range of colors that the display can show.
What this means is, this specification tells the ability of a display to produce accurate colors. A panel with low color gamut coverage will miss out on some colors (such as deep red), so the image produced will look "washed out" in colors.
Different manufacturers use different measurement standards to specify color gamut. Such as — sRGB, NTSC, DCI P3 to name a few.
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.
Other than color accuracy, you should look at the static contrast specification as it impacts the picture quality the same way.
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.
Static contrast specification tells the intensity of black levels. That is, a TV with SC ratio less than 1000:1 will produce black images something like this:

Apart from that, such TVs are likely to suffer from backlight bleeds that will impact your experience — as shown below.

Other than black levels, a TV with high constrast ratio lets you to see more details. So, resolution and static contrast ratio go hand in hand.
This TV features a static contrast ratio of 8000:1., well enough to achieve deep blacks and eye-catching visuals. The panel comes with local dimming backlight technology which is a plus.
HDR is also supported on this TV in form of HDR10 Pro and HLG (Hybrid Log Gamma).
As for brightness, it is can achieve a maximum brightness of 250 nits. The backlight used on the panel is Edge LED (Local Dimming).
Gaming Performance
If you are planning to use your TV solely for content consumption, you can ignore these specifications. But if you are also going to use the TV for gaming or use it as a PC monitor, you would want to take a TV that features the lowest input lag and response time.
Sadly, there is no specification for input lag on this TV. Now, as this is not a cheap TV, we can expect an input lag of less than 20ms.
Understanding Input lag and response time
This lag is the latency at which key-presses or mouse movements changes the content of the screen. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
For best of both worlds, look for a TV that has an input lag and response time of < 20ms.
Dimensions and Ergonomics
The TV measures 65 inches vertically and 57.17 inches horizontally. It is 1.74 inches thick.
In total the TV weighs around 26.6 Kgs including stand. Without stand, it weighs 24.5 Kgs.
Coming to ergonomics — VESA mount is supported on this TV with an interface size of 400 x 400 mm. The unit doesn't come with Swivel, Tilt or Pivot support.
Hardware and Audio
The core of this TV is powered by a Quad Core CPU. There is no data about the total RAM on this TV.
Speaking of OS, the LG 65NANO829QB runs webOS 22 Operating System.
For display connectivity, LG has provided four HDMI 2.0 ports on this TV.
To connect USB devices, you will have 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.
For connecting to this TV wirelessly, you will have — a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth 5.0 and DLNA.
Speaking of power usage, on average, it uses around 95 watts and on standby, it takes 0.5 watts.
For powering this unit, you will require either a 110V or 220V outlet @ 50Hz-60Hz.