TCL C8K vs Sony Bravia 8 MK2

The TCL C8K is a truly bright television. In synthetic conditions – that is, during brightness test patterns – it was able to achieve even 3500 nits of peak brightness in movie mode. This is an impressive result that brings the C8K close to the market leaders, at least in terms of panel brightness. More importantly – these are not 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 real sense of HDR effect. The picture in such moments looks very dynamic, colours are vibrant thanks to excellent colour gamut coverage, and lights are spot-on and intense. Just as it should be.

However, this does not mean that everything is perfect. Similar to the contrast tests, compromises also arise here in more demanding scenes. 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 significantly dim them – to a level of around 300 nits – to maintain blacks. On one hand, this is quite a reasonable approach (better deep blacks than a grey/blue screen), but on the other hand – there may be moments when certain elements of the picture become hardly visible or even disappear into darkness.

TEST UPDATE (20/08/2025) : The brightness control algorithm in this model is quite problematic – an attempt to calibrate the picture so that it does not drastically overexpose the brightest scenes results in unnatural shifts: an improvement in one area of the picture leads to a deterioration in another. The television may achieve slightly higher brightness measurements, but in practice, this comes with a highly oversaturated image that looks very unnatural!

For the sake of order, we provide the brightness values without this adjustment:

1. 1463 nits

2. 640 nits

3. 1368 nits

4. 468 nits

5. 1025 nits

Thanks to the new QD-OLED panel, the Sony Bravia 8 II can achieve astronomically high brightness levels of around 2000 nits, translating into nearly reference-quality for films and series recorded in HDR format. In test materials such as Life of Pi and Sicario 2, the effect is truly captivating – details in bright areas of the image remain perfectly visible, and night scenes enchant with depth and contrast. However, it is not perfect. Compared to its fiercest competitors, the Bravia 8 II shows a noticeable drop in brightness during full-screen, very bright scenes. When comparing maximum peak luminance with 100% white brightness in HDR mode, the Bravia 8 II appears even two or three times dimmer than LG G5 or Samsung S95F models. This was especially evident in a scene from the film The Meg – the screen became noticeably darker than in competing televisions. Despite this shortcoming, the results of the Bravia 8 II still place it among the top of the market. It deserves praise for its absolutely top-tier colour gamut coverage – nearly 100% DCI-P3 and close to 90% BT.2020. These parameters allow for fully extracting the potential of HDR content and providing experiences akin to those in a cinema within the comfort of home.

In the C8K, a new picture mode has appeared: Filmmaker Mode. This is something we have 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, with TCL, this still seems to be at a stage 'in need of improvement'. At first glance, the screen appears too warm – the image leans towards reds, which may not appeal to everyone. The white balance was significantly skewed – the screen looked distinctly warm, and the red colour dominated almost every scene. There was a lack of blue, which resulted in an unpleasant yellowing and distortion of the image. But that’s not all. Regardless of whether we were watching regular television, YouTube, or films in HDR – the television had a clear tendency to excessively brighten the image. In the gamma and EOTF graph tests, the lines, instead of sticking to the pattern, strayed, which in practice translates to an overly bright and less contrasty image. Additionally, in the colour reproduction tests, there were noticeable deviations – on the colour wheel, certain points were even 'off the mark'. It must be said plainly: Filmmaker Mode in the C8K in its current form is not very filmic.

Straight out of the box, the Bravia 8 II performs quite well. In the best IMAX® Enhanced mode, the television is able to render colours in a pleasant and natural way, although “good” doesn’t mean “best in class” here. The white balance definitely needs adjustment – skin tones tend to lean towards slightly pink/cool hues, both in SDR and HDR materials. We also noticed that the characteristic of the EOTF curve reveals a certain tendency to brighten the darkest parts of the image. This is probably due to the manufacturer’s desire to highlight as many details as possible even in deep shadows. Is this a good approach? It’s hard to say definitively, but we know one thing – it is not an ideal solution.

After professional calibration, the TCL C8K has made a huge step forward. In SDR content, we managed to almost perfectly set the white balance – the screen has finally stopped being too warm and has acquired a neutral character. The gamma curve, responsible for the way brightness is reproduced, also looks very good now – the image is more consistent and realistic. We also improved the white balance in HDR content – within the limits that the television itself allows. Unfortunately, the C8K still interprets brightness management somewhat "in its own way." When we look at the EOTF chart in films, it is clear that the television brightens entire scenes more than it should. Before calibration, this effect was really troublesome – now the situation looks 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 excessive cooling of the image caused by an overly strong boost of the blue colour was mainly eliminated. The reds have become deeper, and skin tones have taken on a natural, healthy appearance. The actors, who previously seemed "cold," now look much livelier and more convincing on screen. However, one thing has not changed – the analysis of the EOTF curve still shows that the Bravia 8 II has a tendency to brighten the darkest areas of the image. It is difficult to determine whether this is a deliberate method used by the manufacturer or a result of the panel and software design. In practice, this means that scenes which the creators intended to leave in deep darkness can reveal more details than anticipated. Despite this, the image quality after calibration is clearly improved – warm, natural colours and realistic skin tones make viewing on the Bravia 8 II simply more pleasant to the eye.

How does the TCL C8K perform with lower quality content? One could say: reasonably well, though without much enthusiasm. The television offers a tonal transition enhancement feature, which aims to smooth out unwanted gradients. In practice, there is a slight improvement, but it is not at a level that will eliminate all imperfections. The feature subtly softens harsh transitions, but does not perform miracles. Film grain is not completely suppressed, and gentle banding on grey backgrounds can still be noticeable. But perhaps that is for the best? – at least the image does not lose its texture or depth, as can happen with televisions that overdo digital processing. When it comes to upscaling, or enhancing the quality of images from lower resolutions, the C8K performs quite well. The picture is sharp, and details – although sometimes slightly softened – remain readable. However, it is not at the level of the best image processors from the competition. On the plus side, it is worth noting the lack of overscan issues, which is the artificial trimming of the image that can still surprise in some models from other brands.

Upscaling and digital image processing are a true showcase of the capabilities of the Bravia 8 II. Sony has long been regarded as a master in this field, and here it only reaffirms its reputation. The proprietary XR processor can extract nearly the maximum from lower-resolution materials – whether it's television or an old DVD film, the image appears clearer, with more detail and better depth. Of course, if we feed it exceptionally low-quality material (like our archival photo with the Model), it won't work wonders, but in everyday viewing, it's hard to find fault with it.

The gentle gradation feature also performs excellently. In the "Medium" setting, it effectively smooths tonal transitions, eliminating banding in coloured and grey gradients, while not destroying the film grain or fine details in the image. It is this balance between subtlety and effectiveness that keeps Sony televisions among the best on the market in this category.

If you are planning a weekend with the Champions League or a marathon of F1 races – the TCL C8K won't let you down. The television is equipped with a 144 Hz panel, which means it should handle fast motion well by definition. 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 (motion blur reduction and flicker reduction) makes it easy to adjust the effect to your own preferences. Want to smooth it out a bit – you can. Prefer a cinematic look – no problem.

The smoothness of motion is practically a closed topic in the case of the Bravia 8 II. The OLED with a refresh rate of 120 Hz naturally provides a very clear, sharp image in dynamic scenes, so it's hard to complain about anything here. However, one of the best motion smoothing systems on the market truly deserves special praise. They allow precise adjustment of film smoothness to one’s own preferences – from gentle smoothing to almost a “theatrical” effect – without the risk of artificial jumps, tearing of the image, or annoying artifacts. This is one of those features that will be appreciated both during movie screenings and while watching sports.

TCL C8K offers practically everything we could expect from a screen for gamers. It features variable refresh rate (VRR), automatic game mode (ALLM), Dolby Vision in games, and a correctly functioning implementation of HGiG, which helps preserve the creators' intentions in HDR titles. The television also supports 120 Hz at lower resolutions without any issues and can even display an astonishing 288 Hz in Full HD – a value that is sure to please fans of dynamic shooters and racing games on PC.

We also find the GameBar – a graphic interface reminiscent of an elongated Nintendo Switch console. It is thanks to this that we gain quick access to information about the current game mode, frame rate, HDR format, and other details that really make life easier for the gamer. Of course, we couldn't resist and launched a couple of races in Forza Horizon on the C8K – and we must admit, it looked and performed really well.

However, there is a slight drawback – in such a fast and evidently gaming device, it is somewhat disappointing that the manufacturer opted for the implementation of only two HDMI 2.1 ports. For some users who utilise several next-generation consoles and, for example, a soundbar with eARC, this might be a certain limitation that is hard to overlook.

Sony has really learnt its lessons from previous years and in the Bravia 8 II has prepared a package of features for gamers that is hard to describe in any other way than "almost perfect". We have everything you'd expect from equipment of this class – VRR, ALLM, Dolby Vision Gaming mode, HGiG, and even a handy Game Bar that allows you to quickly preview parameters and change settings without leaving the game. It's also worth noting how smoothly and seamlessly these features work – no delays, no strange stutters. You simply start the game, and everything looks as it should. Unfortunately, there are a few "buts". The manufacturer still only provides us with two full-bandwidth HDMI ports, so if someone has a console, PC, and another device such as a soundbar connected via eARC, it becomes a hassle of switching cables. It is also surprising that there is no support for 1440p resolution at 120 Hz – particularly important for Xbox gamers. Overall, however – this is one of those televisions that can easily be placed in the centre of a gaming lounge and enjoyed without significant compromises.