Launched in the year 2022, the 65C835 is a 65" 4K TV from TCL. It features a True 10-bit VA panel with Anti-glare/Matte finish.
It can achieve a max resolution of 3840 x 2160 with a refresh rate of 144 Hz and pixel density of 68 ppi.
Picture Quality
After screen size and resolution, the very next specification of a display that will impact your viewing experience is Color Gamut.
This TV is rated with a 97% DCI P3 color gamut coverage, which is equivalent to 132.27% sRGB coverage. The color quality on this TV should be Lifelike!
Understanding Color Gamut
Color gamut spec of a TV indicates the range of colors that it can display.
Put Simply, it indicates the ability of a TV to produce accurate colors. A TV with low gamut coverage will miss out on some colors (such as deep red), the result would be a "washed out" picture quality.
It is specified in different units - sRGB(most popular), NTSC, DCI P3 Adobe RGB, rec.2020. It is upto the manufacturer which one they choose.
For example, the color gamut of this TV is specified in terms of DCI P3.
But you don't need to worry about that, here is a chart that will help you choosing a TV with good color accuracy.
After color gamut, next in the list of important specifications that will impact your experience is Static Contrast.
Understanding Static Contrast
A TV with low static contrast ratio will not produce deep enough blacks and possibly can bleed backlight as below:

The above TV's static contrast is rated 800:1. So make sure you get a TV with a static contrast of >= 1000:1. More is better.
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 in a sense.
This TV comes with a static contrast ratio of 8000:1., well enough to produce deep blacks. For the record, it also comes with local dimming technology which is a plus.
HDR is also supported on this TV in form of HDR10, HDR10+, Dolby Vision, Dolby Vision IQ, HLG (Hybrid Log Gamma) and PQ10.
As for brightness, the peak luminance the TV can achieve is 1000 nits. The backlight used on the panel is Mini LED. This amount of brightness is good enough even for a well-lit room!
Gaming Performance
If you are planning to use your TV just for content consumption, you can ignore these specs. But if you are also planning to use the TV for gaming or use it as a PC monitor, make sure to take a TV with the lowest input lag and response time.
Sadly, there is no specification for input lag on this TV. But since 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 your key-presses or mouse movements changes the content of the TV. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, look for a TV that comes with an input lag and response time of less than 20ms.
Dimensions and Ergonomics
The width of this TV is 56.93 inches while its height is 35.55 inches.
It is just 2.68 inches thick. It weighs 23.0 KGs, another 3 kgs if you include stand. So plan your space accordingly.
Now, speaking of 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 TV comes with a 1.6 Ghz Quad Core (ARM Cortex-A73) CPU while its graphics engine is handled by a 0.55 Ghz Dual Core (ARM Mali-G52 2EE MP2) GPU.. There is no data on the available RAM on the TV's specsheet.
For display connectivity, TCL has provided four HDMI 2.1 ports and one AV Composite In 3.5 mm jack port on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x Satellite In (F-type female), 1x Antenna (RF) (female), 1x CI+ 1.4 and 1x Ethernet RJ45.
For connecting to this TV wirelessly, the manufacturer has provided Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth and DLNA.
For audio, TCL has provided 2 x 15W built-in speakers on the TV. It also comes with a built-in subwoofer. So you don't have to invest on any external sound system.
In terms of power usage, the TV consumes 136W on average and 0.29W on standby.
It supports a power outlet of 220 V - 240 V/50 Hz - 60 Hz.