One of the best Samsung TVs I've tested is 44% off for October Prime Day

Artie Beaty/ZDNET

What's the deal?

The 75-inch Samsung QN90C is available for $1,688, a $1,309 discount on one of the best Samsung TVs available for Amazon's October Prime Day. 

Also: The best October Prime Day deals

ZDNET's key takeaways

• While it's no longer the latest QLED model from Samsung, the QN90C is a formidable TV in 2024, with fantastic picture quality, a low-latency mode for gaming, and more.
• The installation process and overall wobbliness are nitpicks but still worth calling out for a TV in this price range.
• Samsung's Gaming Hub features are the TV's low-key best part, ideal for users who want full control over the set's color, refresh rate, and more.

Since being introduced in 2021, Samsung's Neo QLED series of televisions has ranked high in its class, setting the benchmark for display quality and features. While the 2023 QN90C TV is no longer the company's most feature-packed model, it's still one of the best offerings in general if you don't need all the latest AI features on Samsung's 2024 line.

Also: Best Prime Day TV deals to shop in October 2024: Save up to $2,000

The set is available in 43 to 85 inches; I tested the 55-inch model for this review.

Right out of the box, this is just a good-looking TV. It has a very slim design and a super-thin bezel that truly makes the picture stand out. As I was unboxing it, the stand also caught my eye. Instead of two legs like almost all other TVs, the QN90C is supported by a single leg in the middle, similar to a computer monitor. 

Though I must admit, setting up that stand was a little cumbersome, so much so that after I read the manual and started putting it together, I had to refer back to the instructions because I couldn't figure it out. I'd consider that a small inconvenience, though, as it's a "one-and-done" type of thing. I feel like the sleek, premium look was eventually worth it. The stand did have a slight wobble, especially when my kids ran through the living room, but I was never worried about the set toppling over. 

If inputs are a concern, the QN90C has four HDMI ports (one eARC), all of which support HDMI 2.1.

Here's a closer look at the ports on the back.

Artie Beaty/ZDNET

The set uses Samsung's own Tizen software as an operating system. This was my first experience with Tizen, and while it wasn't as user-friendly as Roku or Google TV, I could navigate where I wanted to go without much trouble. 

On the display side, this is a Quantum Mini-LED, which Samsung first introduced in 2021. As the name implies, the LEDs are much smaller here than usual, leading to better backlight control. However, Samsung claims to take that a step further with microlayers inside the LEDs that eliminate noise.

There's support for HDR10 and HDR10+, and online reports put the brightness at nearly 2,000 nits -- meaning it's bright enough for most home and office environments.

My living room has a fair amount of natural light shining where my TV sits, and this set's display thrives in that environment, largely due to its anti-reflection film. There are times with my everyday television that I have to close my blinds because of glare, but the QN90C was bright enough to make that unnecessary. I fired up a personal favorite, Netflix's Stranger Things, to test the display, and it was the most I've enjoyed that show visually. 

Also: LG vs Samsung TV: Which brand should you buy in 2024?

The QN90C also utilizes local dimming control, which takes unused electrical power from dark areas of the screen and diverts it to brighter areas. I was impressed with how that worked here. Dark scenes were dark as intended, but black levels still had a contrast where things were clearly visible. Bright colors popped beautifully, and scenes with fast action showed no signs of blur. 

Samsung has its Neural Quantum Processor on board for upscaling content. This uses AI to add depth and sharpness to content regardless of the original resolution—essentially making everything 4K. I tested this out with Ferris Bueller's Day Off and loved how things looked. I've had televisions where the upscaling produced far too unnatural-looking results, but the QN90C does this very well.

Artie Beaty/ZDNET

When it comes to sound, this set is plenty sufficient as-is. It supports Dolby Atmos, but even without a sound bar, I could hear dialogue clearly over the bustle of my two kids and dog. I keep closed captions on my everyday TV for this very reason, even when using a sound bar, and it was nice to be able to turn that off for a while.

Like other Samsung televisions, it supports object tracking, which sends sounds to the relevant part of the screen. For example, if you're watching a movie with a racing scene, you'll audibly notice the engine sound roar left to right along with the car.

Also: The best Samsung TVs of 2024: Expert tested and reviewed

When I started digging into the gaming features, though, I found where this television really shined. It has a very low input lag (under 10ms), a 120Hz display, support for variable refresh rate, and Samsung's above-average Game Bar feature. 

Holding the pause/play button while a video game console is on brings up the menu overlay. From there, you can dig into settings like Game Picture Mode (there are six to choose from, plus two custom options), Game Motion Plus (which reduces motion blur and improves picture quality), and an on-screen crosshair (with three color options).

From that bar, there's a deeper game mode settings option, which lets you tune the black equalizer, choose "basic" or "advanced" for HDR, and even choose the level of judder reduction and blur reduction. 

Most casual gamers wouldn't dive this deep into these settings, but this is a fantastic thing to have for serious gamers. It's the deepest level of customization I've seen from a gaming menu. I'd call this easily one of the best gaming TVs I've come across. 

ZDNET's buying advice

The Samsung QN90C TV has a few minor annoyances -- I'm hesitant to call the wobbliness and installation process shortcomings -- but its picture quality in every instance and gaming features more than made up for those. If you're looking for a premium-level TV that does well in any environment with any content, keep this one on your list.