TCL C8K vs Sony BRAVIA 5 (XR5)

TCL C8K is a really bright television. In synthetic conditions – that is, during tests with brightness charts – it was able to achieve even 3500 nits peak brightness in movie mode. That's an impressive result and brings the C8K close to the market leaders, at least when it comes to panel brightness. More importantly – these aren't just numbers on paper. In films with a lot of bright scenes, such as Life of Pi or The Meg, the brightness clearly exceeds 1000 nits, providing a true sense of HDR effect. The picture in those moments looks very dynamic, colors are saturated thanks to excellent coverage of the color palette, and the lights are – spot on and intense. Exactly how it should be.

However, this doesn’t mean that everything is perfect. Just like in contrast tests, here too, in more demanding scenes, compromises appear. In sequences with very fine light elements – such as stars in the night sky or reflections in dark rooms – the local dimming algorithm can… get confused. Instead of bringing those details up, the television sometimes decides to dim them significantly – down to around 300 nits – to maintain deep blacks. On one hand, this is quite a sensible approach (better deep black than a grey/navy blue screen), but on the other – there may be moments when certain elements of the picture become difficult to see or even disappear into darkness.

TEST UPDATE (20/08/2025): The brightness control algorithm in this model is quite problematic – attempting to calibrate the picture so that it doesn’t drastically overexpose the brightest scenes results in unnatural shifts: improvement in one part of the image results in deterioration in another. The television may achieve slightly higher readings in brightness measurements, but in practice, this comes with a heavily overexposed image that looks very unnatural!

For the record, we provide brightness values without this adjustment:

1. 1463 nits

2. 640 nits

3. 1368 nits

4. 468 nits

5. 1025 nits

Looking at similar results in terms of black levels and contrast, we expected the same stable performance as last year's model when it comes to HDR content. Unfortunately – and this must be said plainly – there has been a regression here that is hard to miss. The paradox is that the peak brightness of the Bravia 5 can be impressive: in our synthetic tests, the TV reached around 1000 nits in HDR. Sounds great, right? The problem is that this power doesn't always have a real impact on all movie scenes. When small, pinpoint elements appear on the screen, something that in Sony's case was usually fine-tuned with surgical precision, this time it clearly falters. The algorithms try to maintain deep blacks around small objects, but the side effect is that details can be dimmed to the point of becoming barely visible. One only needs to bring up the example of the movie Sicario 2 – there, in some scenes, small light sources practically vanished as if someone had covered them with dark film.

Of course, not everything looks so dramatic. In simpler, brighter scenes, where the image is filled with more light, the Bravia 5 shows that it can shine: literally and figuratively. At those times, the TV achieves values in the range of 600–800 nits, which we saw both in synthetic tests and during movie screenings. The impression is really positive; the brightness adds dynamism, and the colours look vibrant and fresh. However, there remains a certain dissonance. We feel a slight confusion because it is evident that something has gone in the wrong direction. Technological progress – more zones, more backlight power – has not been supported by the kind of refined image management that we usually associate with Sony. Fortunately, there are elements that have not been compromised and are actually at a very high level. We are talking about colour reproduction. Thanks to the use of the PFS filter, the colour palette coverage is excellent – about 97% DCI-P3 and 75% BT.2020. These values allow for a truly wide colour reproduction, giving films a natural and cinematic character.

In the C8K, a new picture mode has appeared: Filmmaker Mode. This is something we've known for years from televisions of other brands – a mode designed to deliver the director's vision as faithfully as possible, without unnecessary image enhancements. Unfortunately, at TCL, it seems to still be in the "to be refined" stage. Right from the first glance, the screen appears too warm – the image veers into reds, which may not appeal to everyone. The white balance was markedly skewed – the screen looked distinctly warm, and the red colour dominated almost every scene. There was a lack of blue, which led to an unpleasant yellowing and distortion of the image. But that’s not all. Regardless of whether we were watching regular TV, YouTube, or HDR films – the television had a clear tendency to excessively brighten the image. In tests of gamma curves and EOTF, the lines strayed instead of adhering to the standard, resulting in an overly bright and less contrasting image. Additionally, in colour reproduction tests, significant deviations were noticeable – on the colour wheel, some points were actually "drifting away." It must be said plainly: Filmmaker Mode in the C8K, in its current form, is not very cinematic.

Sony Bravia 5 was obviously tested in the best possible mode, which is the Movie mode. Right out of the box, it delivers the most natural colours, definitely better than anything offered by the "eco" or "dynamic" modes, which are more suited for a store display than a living room. However, the Movie mode alone does not guarantee that we can always expect cinematic picture quality. In SDR content, we had no significant complaints – the slightly warmed white balance gave the scenes a golden hue, but it was nothing that was glaring. However, a problem arose with HDR materials. Here, the colour reproduction simply looked bad. The white balance was heavily skewed – with an excess of blue and a clear lack of red. At times, it resembled the store mode of "super vivid picture," where everything is blown out and artificially boosted.

This situation made brightness management seem too aggressive as well. The EOTF graph clearly showed that the television has trouble with overexposing many scenes right out of the box. And while we know what Sony televisions are usually capable of, it was hard to remain indifferent here – that’s why we quickly decided to go for calibration.

After professional calibration, the TCL C8K has made a huge leap forward. In SDR content, the white balance has been almost perfectly set – the screen has finally stopped being too warm and has taken on a neutral character. The gamma curve, which is responsible for how brightness is represented, now looks very good – the image is more coherent and realistic. In HDR content, we also improved the white balance – within the limits of what the television itself allows. Unfortunately, the C8K still interprets brightness management a bit "in its own way." When we look at the EOTF chart in films, it’s clear that the television brightens entire scenes more than it should. Before calibration, this effect was quite bothersome – now the situation is much better, although it still falls a bit short of perfection. This, however, is a limitation of the device itself, which – despite our efforts – does not allow us to fully tame its nature.

After calibration, the situation changed dramatically. We managed to tune the white balance so that entire scenes began to look more natural, and the image gained coherence and elegance. In HDR, we finally got rid of that unwanted clipping effect that had previously spoiled some shots. Suddenly, it turned out that the Bravia 5 can extract much more from films than the first contact "straight out of the box" suggested. Indeed, if we look at the graphs and compare them with the standards, we can see that the beginning of the EOTF curve slightly strays beyond the reference line. However, this is not so much a calibration error as it is a natural limitation of the Mini-LED technology that cannot be bypassed. Sony, rather than clinging tightly to perfect black, prefers to prioritise the visibility of details – and in practice, it’s hard to disagree with that. We prefer to see the texture of the material on the screen rather than a pitch-black spot where all nuances disappear.

The calibration itself was really beneficial. After about an hour spent on settings, we felt that the image resembled that of the best cinema halls – of course on a home scale, but with the same sense of quality and refinement. And in such moments, we remember why we love Sony televisions: because once we fine-tune them, they reward us with a picture that captivates for long hours.

How does the TCL C8K handle lower quality materials? One could say: fairly well, though without much enthusiasm. The television offers a tonal transition enhancement feature designed to smooth out unwanted gradients. In practice, there's a slight improvement visible, but it's not at a level that eliminates all imperfections. The feature subtly softens harsh transitions, but it doesn't work miracles. Film grain isn't completely suppressed, and subtle banding on grey backgrounds can still be noticeable. But maybe that's for the best? – at least the image doesn't lose its texture or depth, as is often the case with televisions that overdo digital processing. When it comes to upscaling, which is enhancing picture quality from lower resolutions, the C8K performs quite well. The image is sharp, and details – though sometimes a bit softened – remain discernible. However, it's not on par with the best picture processors from the competition. On the plus side, there's no issues with overscan, which is the artificial cropping of the image that can still surprise in some models from other brands.

Bravia 5 carries the genes of Sony, which remain intact – and thank goodness for that, because we're talking about absolutely exceptional digital image processing. It's no coincidence that for years, it's been considered that TVs from this brand set the standard for how a screen should handle lower quality materials. If someone still watches classic television, old films, or YouTube in lower resolutions, here they get equipment that can turn such content into a surprisingly enjoyable experience. On board, we find several tools worth activating. The first of these is "digital noise reduction." Set to a medium level, it works superbly – smoothing out tonal transitions that usually cause the most trouble in low-quality materials while introducing no artificial artifacts. Importantly, it also doesn't remove the cinematic character, which is the natural grain that is intentionally present in many productions. Another advantage of the Bravia 5 is the upscaling capabilities of the XR processor. The image presented after scaling is soft, yet sharp and clear. The outlines of characters are well-defined, and backgrounds maintain their texture without excessive artificial sharpening. It's hard to find a better TV for watching lower quality materials – Bravia 5 only confirms why Sony is considered the benchmark in this area.

If you're planning a weekend with the Champions League or a marathon of F1 racing – the TCL C8K won't let you down. The television is equipped with a 144 Hz panel, so it should inherently handle fast motion well. And indeed – it performs very well. The fluidity of motion is at a very good level here, and the "Motion Clarity" feature with two sliders (blur reduction and flicker reduction) allows you to easily adjust the effect to your own preferences. Want to slightly smooth things out – no worries. Prefer a cinematic look – no problem.

Bravia 5 has a 120 Hz panel, which in itself sounds like an invitation to watch sports, fast matches or spectacular action films. However, the real magic begins when MotionFlow – Sony's proprietary motion smoother – comes into play. Thanks to this feature, we can adjust the character of the picture to our own preferences. The "smoothness" slider allows us to transition from a cinematic feel with a slight "judder" to a theatrical fluidity, where every ball in the match glides across the screen as if on a string. The higher the value, the smoother and more fluid it is; the lower it is, the more film-like and natural it becomes. In the options, we also find an additional setting that Sony calls "clarity". This is nothing more than the BFI function (which inserts black frames) aimed at improving motion sharpness. It sounds great in theory, but in practice, it must be used with caution. Why? Because all higher settings cause brightness drops of up to half, and in some cases, contour doubling also appears. So if we want to use it, we recommend setting it to the lowest level – "1" out of the available ten. That way, we gain a bit better motion sharpness without risking losing half the brightness of the picture.

TCL C8K offers practically everything we could expect from a screen for gamers. It has variable refresh rate (VRR), automatic game mode (ALLM), Dolby Vision in games, and a well-functioning implementation of HGiG, which helps preserve the creators' intent in HDR titles. The TV also supports 120 Hz in lower resolutions without any problems, and it can even display a staggering 288 Hz in Full HD – a figure that will surely appeal to fans of dynamic shooters and sports games on PC.

On board, we also find the GameBar – a graphical interface that somewhat resembles an elongated Nintendo Switch console. Thanks to this, we gain quick access to information about the current game mode, frame count, HDR format, and other little details that really make life easier for the gamer. We obviously couldn’t resist and ran a couple of races in Forza Horizon on the C8K – and we must admit, it looked and worked really well.

However, there is a slight drawback – in such a fast and clearly gaming-oriented device, it's a bit unfortunate that the manufacturer opted for the implementation of only two HDMI 2.1 ports. For some users, who use several next-gen consoles and, for example, a soundbar with eARC, this could be a limitation that’s hard to overcome.

In the Bravia 5, there is a significant improvement compared to the X90L model from two years ago. The television offers literally everything its predecessor had, but this time the issues that could frustrate gamers have been addressed. Problems with setting the variable refresh rate (VRR) have disappeared, and there are no longer issues with configuring HDR content in HGiG mode. In short: we get a device that simply works as it should, without any hassles. So, the Bravia 5 has everything you can expect from a modern gaming TV – and it can be confidently advertised with the slogan "ready for PS5." That's something we couldn't say about the X90L model. Well done, Sony!

It's just a shame that this relatively high-priced model lacks a full set of four HDMI 2.1 ports. In everyday use, this won’t be an issue for most people, but if someone has a console, soundbar, and additional equipment connected via HDMI, at some point they'll have to choose or juggle cables.