TCL C75B vs TCL P89K / TCL P8K

During our brightness test, the TCL C75B "spat out" around 380 nits of brightness. We recorded similar results while watching most of the films we tested. These can be considered average – the TV performs decently in this segment, but around 400 nits is definitely too low to fully experience the magic of HDR effects. Of course, such results are better than those of budget models, which can achieve nearly half the brightness values. However, for HDR enthusiasts seeking stronger lighting effects and greater realism, the C75B may prove insufficient. On the plus side, it's worth mentioning the coverage of the DCI-P3 colour gamut at 95%. This is a very good result that easily suffices to enjoy a wide range of colours in content available on popular streaming platforms. Vivid and rich colours are definitely a strong point of this model.

The maximum brightness of the TCL P8K peaks at around 300 nits, although in real film scenes the television typically maintains closer to 250 nits. These are values that cannot be considered sufficient to achieve a true HDR effect – they are more aligned with a solid base for SDR content. Therefore, we won’t see spectacular flashes, bursts of light, or moments where the screen actually “blinds” as is the case with more expensive models. The image is consequently a bit flat, and the differences between light and shadow – more symbolic than realistic. Fortunately, TCL has a few aces up its sleeve that save the overall impression. One of these is the coverage of the DCI-P3 colour gamut at around 93-94%. Thanks to an additional QLED layer (PFS LED), colours gain depth and intensity, clearly surpassing standard LCD panels. As a result, while the typical “wow effect” associated with HDR brightness is lacking, the image itself can impress with its richness and vibrant tones, making the film scenes pulse with colour and not appear significantly washed out.

TCL C75B offers various picture modes, but in our opinion, the best choice is the “Film” mode. Although its settings are quite decent, the TV struggles with certain colour reproduction issues. In tests, we noticed that the image had a noticeably pinkish hue compared to what could be considered correct. This effect was particularly evident in skin tones, which appeared unnaturally flushed. The main culprit of this phenomenon turned out to be the white balance, characterised by an excess of blue and red in both HD and 4K HDR materials.

An additional problem was the way brightness was reproduced. The gamma, which is responsible for the visibility of details in darker materials, was definitely boosted, causing details in the darkest parts of the screen to be invisible, disappearing into complete black (e.g., the bottom part of the screen in the comparison image - the area around the actress's ear). The situation was similar on the EOTF curve, which was below the correct value, suggesting that a similar issue may be encountered in 4K HDR content.

Thanks to our experience and the appropriate tools, we decided to take matters into our own hands and check how much could be extracted from this model after professional calibration. The details are described in the next section.

In Filmmaker mode, the TCL P8K revealed certain imperfections in image reproduction from the start. We noticed that the TV had a tendency to slightly brighten scenes – its gamma was somewhat lowered, which made the image appear softly "washed out," lacking depth, as if the contrast had slipped out of control. This was most noticeable in HDR content, where the EOTF brightness curve clearly deviated from reference values. As a result, darker areas of the image looked too gloomy, and brighter ones did not always reach the correct level of luminance. The second noticeable issue was a slight blue overdrive – the TV stubbornly boosted this colour, causing some parts of the image, especially skin tones and reds, to have a slight purple tint. It is not a major flaw, but to a discerning eye – noticeable. Fortunately, most of these errors could be adjusted during calibration. You can see the results of this calibration in the charts and photos below.

After calibration, TCL C75B has clearly improved when it comes to colour reproduction. Although the TV doesn't offer too many options for adjusting the white balance, we managed to improve its settings quite a bit. As a result, the image is no longer overly pink, and the colours now look much more natural and harmonious.

The gamma jump that was previously an issue hasn't completely disappeared, but we were able to significantly reduce it. This has made details in dark scenes more visible – both in HD and 4K HDR content.

Unfortunately, the lack of local dimming is still noticeable. The 'blooming black' effect remains, but that's a limitation of the display itself. Still, the colours post-calibration look significantly better, and the image is much more pleasant to watch.

After calibration, the TCL P8K revealed a completely different side. It managed to achieve nearly perfect, even reference-level colour reproduction for both SDR and HDR content. The screen no longer had a tendency towards a cool tint, and the white balance was perfectly aligned. The gamma values for SDR materials finally look as they should – the image has the right depth and no longer appears washed out. The only concern that can still be raised about the P8K pertains to its "Chinese" traits, known from most TCL models. The TV still likes to manipulate saturation in HDR content in its own way – sometimes it gently boosts it, other times it smooths it out, making the effect not always fully predictable. Nevertheless, after calibration, the colours look stunning, and their accuracy is truly impressive. In most cases, measurement errors dropped below values of 1–2, which is a performance that much more expensive models would not be ashamed of.

TCL C75B has a feature for smoothing tonal transitions, but unfortunately, we cannot praise it. Regardless of the selected level – low or high – tonal transitions in older materials remained visible, as if the feature wasn’t working at all. It’s hard to say anything positive about it, as in practice it seems completely useless.

Image scaling is better. The TV handles it quite decently, although on thinner elements, like branches in the background, you can see slight jaggedness. However, this is not something that significantly hinders everyday viewing.

Unfortunately, a bigger problem turned out to be overscan, or cropping of the image edges. In our tests, it happened that news ticker or other elements close to the edge of the screen were cut off. This is definitely something to pay attention to, especially if we use the TV for watching news programs or content with text on the screen.

The TCL P8K performs somewhat weaker when it comes to the fluidity of tonal transitions in lower quality materials. The television does offer a feature to smooth out unwanted bands, but its effectiveness leaves a lot to be desired. Even at the highest setting, it's hard to speak of a real improvement—at times, the effect is even opposite to what was intended, as the feature can introduce small artifacts and unnatural blurring on the screen.

On the other hand, the upscaling, which involves scaling the image to 4K resolution, looks definitely better. The P8K handles this task surprisingly well—HD content, and even SD, is enhanced in an aesthetically pleasing way without excessive loss of sharpness. There are indeed slight “hard” edges typical of this class of equipment, but this can be easily adjusted using the sharpness slider according to personal preferences. The final effect is more than satisfying, especially considering the price range this model is in.

TCL C75B definitely has something to offer gamers. The television is equipped with a panel that can display images with a refresh rate of 144 Hz in 4K, and even 240 Hz in Full HD. These are really impressive results, especially for a model from the budget range.

On top of that, there are features for improving smoothness and reducing motion blur in films. The "Motion" option allows for precise adjustment of the effect on a 10-point scale, providing significant personalisation possibilities – everyone can set the smoothness to their liking.

TCL P8K is one of the cheapest televisions offering a 144 Hz refresh rate, which in itself is a significant advantage in this price segment. Thanks to the fast panel, this model can confidently be recommended to both sports fans and gamers – the image is smooth, and the movements of the ball or dynamic actions look natural. However, this does not mean that the P8K is suitable only for sports. On the contrary – it can also maintain the right dynamics in movies without introducing an artificial 'theatrical' effect, as long as the settings are adjusted thoughtfully. The television is equipped with a motion smoother called 'Motion Clarity', which features two sliders: blur reduction and flicker reduction. The first is responsible for smoothing the image by generating additional frames, which increases fluidity but can cause a slight soap opera effect. The second, on the other hand, reduces flicker and improves sharpness in motion, although it may slightly dim the screen. Properly adjusting these two parameters allows for a truly good balance between natural motion and fluidity. The 60 Hz screen is good for dynamic content, though more discerning users will notice that it is not a top-tier panel in terms of motion clarity.

TCL C75B is undoubtedly a television designed with gamers in mind. It has almost everything needed for even the most demanding console users. With the implementation of full bandwidth HDMI 2.1, the TV supports features like ALLM (automatic low latency mode) and VRR (variable refresh rate) – operating within the full capabilities of the TV, up to 240 Hz in Full HD resolution.

Additionally, the television supports advanced HDR technologies, including Dolby Vision and HGiG, which allows for even better detailing in HDR-optimised games. C75B is also equipped with a very convenient interface for gamers in the form of Game Bar, where you can check all key parameters such as refresh rate, input lag, or picture settings – all just a click away.

In one sentence: C75B is a great choice for gamers, offering a wide range of features that fully enable enjoyment of the capabilities of modern consoles and games.

Although the TCL P8K is a budget television, it absolutely cannot be said that it is unsuitable for gaming. On the contrary – this screen can pleasantly surprise any gamer. On board, we find two HDMI 2.1 ports, which allow us to effortlessly send a 4K image at 120 Hz. If someone plays on PC, they will also be pleased to know that the television can operate even with a refresh rate of 240 Hz at a lower resolution – a small thing, but it’s appreciated. Additionally, there is a full set of gaming-specific features: automatic game mode, a Game Bar with quick parameter previews, VRR, HGiG, and support for Dolby Vision in games. All of this makes gaming on the P8K a truly enjoyable experience – the image is smooth, the response is quick, and the television works well with next-gen consoles. The TCL P8K shows that a cheap screen doesn't have to mean giving up on fun. Definitely not when it comes to gaming.