The 75QNED919QA is a 75 inch 4K TV from LG. It was launched in 2022. It features a True 10-bit IPS panel.
It can achieve a max resolution of 3840 x 2160 @ 120 Hz with a pixel density of 59 ppi.
Picture Quality
After screen size and resolution, the next important spec of a display that impacts picture quality is Color Gamut.
This TV doesn't come with a color gamut specification, but don't worry, we have other means to guess that.
Considering the TV features a 75 inch screen, it won't come with a cheap panel, so here we can assume its equivalent sRGB coverage to be 90-100% or above. Undoubtedly The color quality on this TV will be Lifelike! Meaning it is capable of producing color accurate images AS IT IS intended.
What is Color gamut ?
Color gamut specification of a TV is the measurement of the range of colors that the TV can show.
A TV with poor color reproduction will produce undersaturated/washed out colors that will not be pretty to look at.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC, DCI P3 etc. It is upto the manufacturer which one they choose.
But you don't need to worry about that, below is a chart that will help you choosing a TV with good color accuracy.
Other than color accuracy, the static contrast of a TV similarly impacts its picture quality.
Understanding Static Contrast
A TV with high enough static contrast ratio will produce deep blacks while a TV with low contrast ratio (<1000:1) will produce images that look muddy as shown below.

As you can see, this will impact your experience considerably.
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 comes with a static contrast ratio of 8000:1., good enough to achieve deep blacks and eye-catching visuals. For the record, it also comes with local dimming backlight which is a plus.
HDR is also supported on this TV in form of Dolby Vision, HDR10 Pro, HLG (Hybrid Log Gamma) and Dolby Vision IQ.
Coming to brightness, it can go as bright as 250 nits. The panel of this TV is powered by Mini LED backlight.
Gaming Performance
If you are planning to use your TV just for content consumption, you can ignore these specifications. But if you are also planning to use the TV for playing games or use it as a PC monitor, you would want to take a TV that features the lowest input lag and response time.
Unfortunately, LG did not specify the input lag on this unit. But since this is not a cheap TV from LG, input lag on this TV could be 20ms or below.
What is Input lag ?
This lag is the amount of time at which your device 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 has an input lag and response time of < 20ms.
Ergonomics and Dimensions
Now, 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. There is no Swivel, Tilt or Pivot feature support on this TV.
Vertically, the TV measures 75 inches and horizontally 65.55 inches. It is 1.16 inches thick.
It weighs approximately 36.2 kilograms and 3.4 kgs extra if you include stand. So plan your space accordingly.
Hardware and Audio
The TV is powered by Quad Core CPU. However, we could'nt find any information about the total available RAM on this TV.
The Operating System on this TV is webOS 22.
For display connectivity, there are two HDMI 2.0 ports and two HDMI 2.1 ports on this TV.
To connect USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x CI+ 1.4, 1x Antenna (RF) (female), 1x Satellite In (F-type female) and 1x Ethernet RJ45.
For connecting to this TV wirelessly, you will have — Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
Now, speaking of speakers, it is packaged with 2 x 10W speakers. It also comes with a built-in sub-woofer. So you don't have to invest on an external sound system.
Now, coming to power consumption, the TV consumes 128W on average and 0.5W on standby.
For powering this unit, you'll require an 220 V - 240 V/50 Hz - 60 Hz outlet.