The QN85Q60B is a 85 inch 4K TV from Samsung. It was launched in 2022. It comes with a 10-bit VA panel. The max. resolution it can display is 3840 x 2160 with a refresh rate of 60 Hz and a pixel density of 52 ppi.
Picture Quality
After screen size and resolution, the next important feature to look for in a display is its Color Reproduction Accuracy (defined by its color gamut specification).
The Samsung QN85Q60B is rated with a DCI P3 gamut coverage of 100%. Incase you're wondering, this is equivalent to 136.36% sRGB coverage. The color accuracy on this TV should be Lifelike!
What is Color gamut ?
Color gamut specification of a TV is the measurement of the range of colors that the display can produce.
Put Simply, it tells the ability of a TV to produce accurate colors. A TV 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 units to specify color gamut. Viz — 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 will help you choosing a TV with good color accuracy.
Other than color accuracy, the static contrast specification of a TV holds almost equal role in picture quality.
Why its important?
A TV with low static contrast ratio will not produce deep blacks and possibly can bleed backlight as in the images below:

The above TV's static contrast is 800:1. So make sure you get a TV with a static contrast of >= 1000:1. More the better.
Also, a TV with high constrast ratio allows you to see more details. So, resolution and static contrast ratio go hand in hand.
This TV is rated with a static contrast ratio of 8000:1., enough to display deep blacks. The panel comes with local dimming backlight technology which is a plus.
HDR10, HLG (Hybrid Log Gamma), HDR10+, HDR10+ Adaptive and Quantum HDR are also supported on this TV.
As for brightness, it is can achieve a peak luminance of 250 nits. The backlight of this TV is powered by Edge LED technology.
Gaming Performance
If you are planning to use your TV only for content consumption, you can ignore these specs. But if you are also going to use the TV for gaming or use it as a PC monitor, make sure to get a TV with the lowest input lag and response time.
Unfortunately, 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.
What is Input Lag and Why it matters ?
This lag is the latency at which device inputs changes the content of the TV. For casual Non-FPS games, input lag doesn't matter much.
Although for better experience, get a TV that comes with an input lag and response time of less than 20ms.
Dimensions and Ergonomics
The vertical and horizontal measurements of this TV are 74.8 inches and 45.38 inches respectively. Coming to thickness, it is just 1 inches thick.
It weighs approximately 41.5 KGs, another 1.6 kgs if you include stand.
Now, coming to ergonomics — a VESA mount with interface size of 600 x 400 mm is provided for wall-mounting. The unit doesn't come with either Swivel, Tilt or Pivot support.
Hardware and Audio
The Samsung QN85Q60B comes with a 4-Core CPU. There is no information about the total RAM on the TV's official specsheet.
To power its UI, the TV runs Tizen 6.5 Operating System.
For display connectivity, there are three HDMI 2.0 ports on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x Cable/Antenna In (F-type female), 1x RS232 (C) and 1x Ethernet RJ45.
For wireless connections, the manufacturer has provided a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth and DLNA.
Coming to audio, it is packaged with 2 x 10W built-in speakers.
Now, coming to power usage, on average, it uses around 171 watts. On standby, it uses 0.5 watts.
For powering this unit, you'll need an 100 V - 120 V/50 Hz - 60 Hz outlet.