TCL C7K / QM7K 55"-85" vs Samsung Q8F

In terms of brightness, the models ranging from 55 to 85 inches in the C7K series are truly impressive. Under optimal testing conditions, the 65-inch screen exceeded 1200 nits, which in practice means that the brightest scenes can dazzle with almost cinematic brilliance. These are not just dry figures from measurements – during screenings, bright skies, explosions, or reflections of light on water looked incredibly striking, often giving the impression that the television exceeds its price range. This is particularly effective in scenes with large areas of illumination, where the screen fills with intense brightness – for instance, in sun-drenched shots or during dynamic action sequences. Viewers looking for strong HDR will definitely be satisfied.

However, scenes that require precise backlight control – with tiny points of light against a dark background – prove to be more challenging. Here, the C7K, despite having over a thousand zones, can still dim brightness to maintain deep blacks. The effect is that in films like Sicario 2 or LIFE of Pi, some details, such as a distant lighthouse or single reflections, may appear less distinct or blend into the surroundings. This is a compromise inherent in MiniLED technology – it provides excellent image depth and blacks at a level not offered by standard LCDs, but this comes at the cost of limited visibility of the tiniest lights.

In terms of brightness, the Samsung Q8F performs surprisingly well for a TV without local dimming. It measures up to 500 nits, which in practice means that most movie and series scenes look pleasant, and it cannot be faulted for lacking the "HDR effect." In films like Life of Pi or The Meg, the screen can burst with bright light, delivering a level of lighting effect that is satisfying. It struggles more in challenging moments—such as dark scenes with single bright points. The global dimming used causes the TV to darken the image to maintain deep blacks, but at the expense of detail brightness. This is clearly visible in the scene from Sicario 2, where the brightness of the helicopter lights dropped to around 200 nits. This is a deliberate design choice that gives the impression of deeper blacks but takes some shine away from individual elements, and one should simply keep that in mind. Regarding colour reproduction, the Q8F uses quantum dot technology, which expands the colour gamut. A coverage of the DCI-P3 palette at 91% can be considered a decent result, although it is not a record-breaking figure compared to other QLEDs.

The new feature in TCL TVs for 2025 is the long-awaited Filmmaker mode, which until now has been found in most competing brands. This is great news, as this mode is regarded as the one that best represents the original vision of the creators and is often recommended by enthusiasts of good picture quality. Unfortunately – as is often the case – the mere presence of it does not guarantee perfection. The Filmmaker mode in the TCL C7K is not without its flaws. One could critique the incorrect white balance, particularly the slight dominance of blue, which caused cool, slightly greyish skin tones. But that was not the biggest issue. The main complaint was the excessive brightness exposure, which is clearly visible on the gamma and EOTF graphs. The picture was simply too bright, at times even blown out, which affected not only the richness of the scenes but also the overall viewing experience. Some details were simply lost, and the whole image looked as if someone had overdone the brightness slider a bit. As always – we decided to see what could be squeezed out of this after calibration. And that’s where it started to get really interesting…

We decided to check out the Filmmaker mode because right out of the box it gave us the best picture. However, that doesn't mean it was perfect. The white balance had too much of a blue and red tint, causing the whites to lean towards a slight purple-pink hue. Such imbalance affected the visibility of virtually all colours, which is clearly seen in the comparison photo below. The brightness characteristics in SDR content were quite well calibrated, although in HDR materials we noticed that the TV didn't always handle its global dimming well — at times the screen was too dim, while at other times it could suddenly brighten up. Fortunately, issues related to colours can be effectively corrected with calibration tools, so we decided to get to work.

After calibration, the TCL C7K put on a really good show, especially when it comes to SDR content. We managed to precisely tune the white balance, colour gamut, and brightness characteristics, resulting in colour errors on the ColorChecker palette dropping below a value of 2. For the uninitiated – this is an almost perfect score, meaning the image is very close to what the creators intended. Unfortunately, things didn’t look as good with 4K HDR content. While we managed to slightly calm down the white balance and correct its previous errors, it still shows that the TV has some "MiniLED traits," especially in brightness management. When we checked how the C7K handles the EOTF curve on actual movie scenes, rather than just synthetic test patterns, it turned out that the screen still has a tendency to slightly brighten the entire image. This affects the overall experience – blacks lose some depth, and the image becomes less contrasty than it should be. Despite these minor shortcomings in HDR content, the overall reception of materials – especially in SDR – is really very good. After calibration, the C7K can display an image that can successfully compete with much more expensive models. Good tuning of colours, natural skin tones, and pleasant brightness make movie sessions and everyday content viewing more than satisfying.

After calibration, we managed to correct the white balance to almost perfection. Older SDR content looks fantastic — most errors are within a value of 2, which is definitely below the threshold of human perceptibility. In HDR, we also brought the white balance to an acceptable level, but a different problem arises here. So why are there still relatively large errors in colour reproduction? This is mainly due to the limited colour palette and the way the television manages brightness. The global dimming technique used does not give the user control in the settings, so analysing the EOTF curve in HDR films, it's clear that the Q8F can modify luminance on its own. This can be seen as a limitation, but still, the image after calibration is much more enjoyable to watch than in the factory version.

TCL C7K comes with a feature that, according to the manufacturer, aims to smooth out unwanted colour transitions – something like a rescue for less successful tonal changes. It's called "Gradual Smoothing" and... well, it sounds ambitious, but in practice, it works very poorly. Regardless of whether we set it to low or high, the difference is minimal. And worse still – the feature can cut out elements from the image that should remain. Fortunately, film grain is left untouched, so at least it doesn't smooth everything indiscriminately, but even so – it's best to just turn this option off.

When it comes to upscaling lower resolution content, it's already better. SD and HD materials look quite decent, although at times we felt that the image loses sharpness and becomes too soft – as if something had taken away its clarity. Fortunately, with very low sources (e.g. 576p), there was no overscan effect, meaning the image wasn't artificially cropped – everything fit on the screen as it should.

Let's see how the Q8F handles older content, which often has poor quality. Starting with the positives: the upscaling works really well. The TV performs nicely with both classic television and materials from YouTube, not giving the impression that we're dealing with something completely unattractive. It struggles more with content in very low resolutions, such as 576p — the image can be cropped, and unfortunately, the overscan phenomenon cannot be disabled. Moreover, the digital processing does not look great either. The noise reduction feature, instead of removing unwanted artefacts, smooths out almost everything: film grain (which many viewers desire) disappears along with the texture of the image, and actors' faces start to resemble characters from cheap Turkish soap operas. It's hard to consider this option useful — it's best left completely off. Perhaps Samsung will refine the function’s performance in updates, but for now, it’s difficult to view it as anything other than an unnecessary addition.

TCL C7K handles motion smoothness really well. The panel used in it offers a refresh rate of 144 Hz, which alone suggests that this TV is more than just a regular "60 Hz" panel. Moreover, if we connect the C7K to a computer and set the resolution to Full HD. But we will write more about this in the section for gamers and PC compatibility. Returning to everyday use – both sports and movies look very good here. Thanks to the quick panel and the well-functioning motion smoothening feature, the C7K is great for watching matches as well as for movie screenings. In the menu, we find two sliders – blur reduction and flicker reduction – that allow adjusting the smoothness effect to personal preferences. At lower settings, we get a more cinematic effect, with a slight judder. At higher settings – the image becomes more theatrical, smoothly even to excess. Whatever your taste, everyone can set it to their liking.

Due to the applied 60 Hz panel, it's hard to call the Q8F a television made for gaming or watching sports. The panel isn't particularly fast, making motion blur clearly visible. If you were expecting a spectacular, almost 'stadium-like' experience during broadcasts, you might feel a bit disappointed. Fortunately, for movies and series, Samsung hasn't given up on the motion smoothing function. It's nothing more than a smoother that allows for improved fluidity of productions recorded at 24 or 30 frames per second. This way, you can decide for yourself whether you prefer a more fluid, 'television-like' image or to retain the cinematic character. It all depends on the viewer's preferences, and the ability to adjust this parameter is undoubtedly a plus.

TCL C7K is a TV that on paper looks like the dream gear for a gamer – and most importantly, it also holds up in practice. First, the good news: we have two HDMI 2.1 ports with full bandwidth, so we can easily connect both a console and a computer, making use of all their capabilities. The panel itself supports a refresh rate of 144 Hz, which gives a considerable advantage in fast-paced games. On top of that, it comes with a full suite of gaming features: VRR (variable refresh rate), ALLM (automatic low latency mode), and Dolby Vision support in games. There’s also an HGiG mode that provides an HDR effect aligned with the creators' intentions. GameBar, which is an information bar for gamers. It operates quickly, looks clear (like a Nintendo console👌), and displays what matters most: the current frame rate, VRR status, and even HDR parameters.

It's not entirely clear what Samsung has messed up this year with its TVs, but the Q8F isn't free from all the confusion with updates and shortcomings. While its older cousin, the Q67D, could still be recommended with a clear conscience to casual gamers, it's hard to find a reason to do so here. Aside from the automatic game mode and the attractively designed Game Bar, we get practically nothing that could appeal to gamers. The lack of proper HGiG implementation is a major issue, especially since the feature simply disappeared after the 1126 update. The situation with VRR is even worse. Even though it appears in the manufacturer's brochures and shows up in the Game Bar, we couldn't get it to work. The Xbox Series X console wouldn't allow it to be activated at all, and the option remained greyed out and inactive. It's difficult to praise such a TV even to casual gamers, which is a shame because Samsung has had a strong selling point in the gaming segment for years.