The 43P735 is a 43 inch 4K TV from TCL, launched in the year 2022. It comes with a 10-bit VA panel.
It can achieve a max resolution of 3840 x 2160 with a refresh rate of 60 Hz and pixel density of 103 ppi.
Picture Quality
Now, the very next spec of a display that defines picture quality is its Color Gamut.
Speaking of which, this TV features a DCI P3 color gamut coverage of 75% — equivalent to 102.27% sRGB coverage. Meaning, the color reproduction on this TV will be excellent! So your viewing experience will be immersive as this TV is capable of producing near accurate colors by default.
Understanding Color Gamut
Color gamut spec of a display is the measurement of the range of colors that the TV can display.
A TV with poor color accuracy will produce undersaturated/washed out colors that will spoil your immersive experience.
It is specified in different units - sRGB(most popular), NTSC, DCI P3 etc.
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.
Next in the list of important specifications is Static Contrast.
The importance of static contrast ratio
A TV with low static contrast ratio will not produce deep enough blacks and possibly bleed backlight as 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 the better.
Like resolution, the static contrast ratio is also equally responsible for 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, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV comes with a static contrast ratio of 5000 : 1., well enough to display deep blacks. For the record, it also comes with local dimming which is a plus.
HDR is also supported on this TV in form of HDR10, HLG (Hybrid Log Gamma) and Dolby Vision.
Coming to brightness, it can go as bright as 270 nits, powered by Direct LED backlight technology.
Gaming Performance
If you aren't interested in gaming, you can safely ignore these specs. But if you are also going to use the TV for gaming or use it as a PC monitor, you should take a TV that features the lowest input lag and response time.
The input lag on this TV is 15 ms and its minimum response time is 8 ms. It is acceptable for both casual and competitive/FPS games alike.
What is Input lag ?
This lag is the amount of time at which device inputs changes the content of the screen. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, look for 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 200 x 200 mm. The unit doesn't come with Swivel, Tilt or Pivot support.
The width of this TV is 37.68 inches while its height is 24 inches.
Speaking of thickness, it is 1.73 inches thick.
Overall the TV weighs around 8.3 kgs (including stand). Without stand, it weighs 8.1 kgs.
Hardware and Audio
The TCL 43P735 comes with a 4-Core CPU. However, TCL didn't provide any information on the total available RAM on the TV's specsheet.
For display connectivity, there are two HDMI 2.0 (4:2:2) ports and one AV Composite In 3.5 mm jack port on this TV.
To connect USB devices, you will have one USB 3.0 port. Other connectivity ports include — 1x Satellite In (F-type), 1x Antenna (RF), 1x CI+ 1.4 and 1x Ethernet RJ45.
For connecting to this TV wirelessly, you will have — Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth and DLNA.
The Audio unit of this TV is powered by 2 x 10W speakers.
Speaking of power usage, the TV consumes 48W on average and 0.3W on standby.
Both 110V and 220V outlets are supported on this unit.