Launched in the year 2022, the 75C835 is a 75" 4K TV from TCL. It comes with a True 10-bit VA panel with Anti-glare/Matte finish. It can achieve a max resolution of 3840 x 2160 @ 144 Hz with a pixel density of 59 ppi.
Picture Quality
After screen size and resolution, the next most important spec to look for in a display is its Color Reproduction Accuracy (defined by its color gamut specification).
Speaking of which, this TV is rated with a DCI P3 color gamut coverage of 97%. FYI, this is equivalent to 132.27% sRGB coverage. The color quality on this TV will be Lifelike!
Understanding Color Gamut
Color gamut spec of a TV is the measurement of the range of colors that the TV can produce.
A panel with poor color accuracy will produce washed out colors that will not be pretty to look at.
It is specified in different units - sRGB(most popular), NTSC 1953, DCI P3 to name a few.
As for this TV it is specified in DCI P3.
But don't worry, below is a chart that you can use to choose a TV with good color accuracy.
Now, after color gamut, the static contrast ratio of a TV holds almost equal role in picture quality.
Understanding the static contrast ratio
A TV with low static contrast ratio will not produce deep enough blacks and may bleed backlight as shown in the below image:

The above TV's static contrast is rated 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More is better.
Other than black levels, a TV with high constrast ratio allows you to see more details. So, resolution and static contrast ratio go hand in hand in a sense.
If given a choice, I will 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., well enough to achieve deep blacks and eye-catching visuals. The panel comes with local dimming technology which is a plus.
HDR10, HDR10+, Dolby Vision, Dolby Vision IQ, HLG (Hybrid Log Gamma) and PQ10 are also supported on this TV.
As for brightness, it can go as bright as 1000 nits. The backlight of this TV is powered by Mini LED technology. This amount of brightness is good enough even for a room with sun's rays in!
Gaming Performance
If you are planning to use your TV just for content consumption, you can safely ignore these specs. But if you are also planning to use the TV for gaming or use it as a PC monitor, you should take a TV with the lowest input lag and response time.
Sadly, we cannot find the input lag specification for this unit. Now, since this is not a cheap TV, input lag on this TV could be 20ms or below.
What is Input Lag and Why it matters ?
This lag is the latency at which device inputs changes the content of the screen. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
But ideally, get a TV that features an input lag and response time of < 20ms.
Ergonomics and Dimensions
Speaking of ergonomics — If you plan to wall mount the TV, you can make use of the VESA mount provided with this TV, which by the way has an interface size of 400 x 400 mm. However, there is no Swivel, Tilt or Pivot feature support on this TV.
Vertically, the TV measures 75 inches and horizontally 65.76 inches. It is just 2.73 inches thick. In total this TV weighs around 36.8 KGs including its stand. Without stand, it weighs 33.8 kgs. So plan your space accordingly.
Hardware and Audio
The internals of TCL 75C835 is powered by 1.6 Ghz 4-Core (ARM Cortex-A73) CPU along with a Dual Core 0.55 Ghz (ARM Mali-G52 2EE MP2) GPU.. There is no information about the total RAM on this TV.
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.
Wireless connectivity options on the TCL 75C835 include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth and DLNA.
Now, speaking of speakers, it is packaged with 2 x 10W built-in speakers. It also comes with a built-in sub-woofer. So you don't have to invest on any external sound system.
In terms of power consumption, the TV consumes 172 Watts on average and 0.28 Watts on standby.
For powering this unit, you will need an 220 V - 240 V/50 Hz - 60 Hz outlet.