The OLED65C29LD is a 65 inch 4K TV from LG, launched in the year 2022. It features a True 10-bit OLED evo panel.
The max. resolution it can display is 3840 x 2160 with a refresh rate of 120 Hz and a pixel density of 68 ppi.
Picture Quality
After screen size and resolution, the next important feature of a display is its Color Reproduction Accuracy, which is defined by its color gamut specification.
LG did not provide a color gamut specification for this TV. So we have to take a guess. As the TV features an OLED panel, so we can conclude that the equivalent sRGB coverage of this TV would be far above 100%.
What Color Gamut means ?
Color gamut specification of a TV is the measurement of the range of colors that it can display.
What this means is, it indicates the ability of a TV to produce accurate colors. A display with low gamut coverage will miss out on some colors (such as deep red), the result would be a "washed out" picture quality.
Different manufacturers use different units to specify color gamut. Viz — sRGB (standard RGB), NTSC, DCI P3 etc.
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 of a TV also impacts its picture quality.
What is Static Contrast ?
A TV with low static contrast ratio will not produce deep enough blacks and can bleed backlight as 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 is 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, I will prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
Given this TV comes with an OLED panel, its static constrast will be Infinity : 1. So no need to worry about this at all.
HLG (Hybrid Log Gamma), Dolby Vision, Dolby Vision IQ and HDR10 Pro are also supported on this TV, so that's a plus.
As for brightness, it is can achieve a maximum brightness of 250 nits.
Gaming Performance
If you are planning to use your TV just for content consumption, you can safely ignore these specifications. But if you are also planning 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.
The input lag on this TV is 5 ms and its minimum response time is 1 ms. For a TV, its the best you can get for gaming.
Understanding Input lag and response time
This lag is the latency at which your inputs changes the content of the screen. For casual Non-FPS games, input lag doesn't matter much.
But ideally, look for a TV that comes with 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 300 x 200 mm. However, there is no Swivel, Tilt or Pivot feature support in this TV.
The vertical and horizontal measurements of this TV are 56.73 inches and 34.61 inches respectively. Coming to thickness, it is just 1.78 inches thick. It weighs 14.8 kilograms and 1.7 kgs extra including stand.
Hardware and Audio
The LG OLED65C29LD comes with a Quad Core CPU. However, LG didn't provide any info about the total available RAM on the TV's official specsheet.
To power its UI, the TV runs webOS 22 Operating System.
For display connectivity, there are four HDMI 2.1 ports and one S/PDIF port on this TV.
For connecting USB devices, it includes three USB 2.0 ports. Other connectivity ports include — 1x Satellite In (Main — F-type female), 1x Antenna (RF) (female), 1x IR Out, 1x CI+ 2.0 and 1x Ethernet RJ45.
Wireless connectivity options on this TV include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
Coming to audio, it is packaged with 2 x 10W speakers. It also comes with a built-in subwoofer. So you may not have to invest on any external sound system.
As for power usage, this TV uses 119 watts on average and 0.5 watts on standby.
For powering this unit, you will need either a 110V or 220V outlet @ 50Hz-60Hz.