TCL C75B vs LG UA75006LA (VA)

During our test, the TCL C75B "spat out" around 380 nits of brightness. We recorded similar results while watching most of the films we tested. They can be considered average – the television does not perform poorly in this segment, but around 400 nits is definitely too low to fully experience the magic of HDR effects. Of course, these results are better than those of budget models, which can achieve almost half the brightness values. However, for HDR enthusiasts seeking stronger lighting effects and greater realism, the C75B may prove insufficient. On the positive side, it's worth mentioning the DCI-P3 colour gamut coverage of 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 LG UA7500 with a VA panel holds brightness at around 350 nits, which does not make a significant impression by today's standards. It is hard to speak of a true HDR experience here – most content looks more like classic SDR with a slight attempt at boosting the highlights. The advantage is that regardless of the tested scene, the effect remained relatively stable. However, we noticed that in very extreme scenes with a lot of fine details, the television can gently dim the image to achieve better black levels, but this comes at the expense of visibility of bright effects. It is also worth noting that the UA7500 is not equipped with any additional technologies for expanding colours. It is neither a QLED panel nor PFS LED, which is why the coverage of the DCI-P3 colour gamut is only 80%, making many HDR films appear flat and not conveying the full diversity of colours.

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

An additional problem was the way brightness was rendered. 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 blackness (e.g., the lower part of the screen in the comparison photo - around the actress's ear). Similarly, the situation was reflected in the EOTF curve, which was below the correct value, suggesting that we might encounter a similar problem in 4K HDR content.

Thanks to our experience and the right tools, we decided to take matters into our own hands and see how much we could extract from this model after professional calibration. We describe the details in the next section.

The Filmmaker mode on the LG UA7500 performs better than one might expect from such a budget television, but let’s not get carried away with praise. The image is put together quite sensibly and does not irritate at first glance, however, its weaknesses quickly become apparent. This is most evident in scenes with bright points – background lamps or reflections of light on the skin are distinctly exaggerated. The faces of the characters often look unnatural, as if they have been 'overexposed'. Added to this is the default gamma characteristic, which brightens the smallest details and causes the image to lose subtlety in darker areas. Nevertheless, it is a fact that for its price range, the UA7500 in factory mode provides a fairly decent starting point. However, it is clear that without additional adjustment, it will not be possible to avoid these problems, which is why – as with other televisions – we decided to see what could be achieved after calibration.

After calibrating the TCL C75B, it has clearly improved in terms of colour reproduction. Although the television does not offer many options for adjusting the white balance, we managed to enhance its settings quite significantly. As a result, the image is no longer excessively pink, and the colours now look much more natural and harmonious.

The gamma jump, which was previously an issue, has not completely disappeared, but we have managed to reduce it considerably. This has made details in dark scenes more visible – both in HD and 4K HDR materials.

Unfortunately, the lack of local dimming is still noticeable. The "blooming black" effect remains, but that is a limitation of the display itself. Nevertheless, the colours after calibration look far better, and the image is much more enjoyable to watch.

The biggest improvement we noticed was when calibrating the mode intended for everyday SDR content. We managed to smooth out the white balance in an acceptable way and tackle the problem of excessive brightening of fine details due to the gamma curve. As a result, the image gained the consistency and naturalness that was missing in the factory settings. After such adjustments, we can confidently state that for everyday television content, programmes, or materials from YouTube, the LG UA7500 performs very well – especially after professional calibration. The situation is somewhat different for HDR content. Here, calibration allowed us to tame the white balance and slightly improve the brightness management; however, the limitations of the construction are immediately apparent. The lack of additional filters to widen the colour palette results in the most vivid colours appearing flat, and the image does not display the intensity we would expect from good HDR. So in SDR, the UA7500 performs quite well, but in HDR – despite corrections – it remains far behind, and this is a characteristic that one must accept when choosing this television.

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

The image scaling is better. The television performs quite decently, although on thinner elements, like branches in the background, you can notice slight jaggedness. However, this is not something that significantly interferes with daily viewing.

Unfortunately, a bigger problem turned out to be overscan, which is cutting off the edges of the image. In our tests, there were instances where news tickers or other elements near the edge of the screen were cut off. This is definitely something to pay attention to, especially if we use the television for watching news programmes or content with text on the screen.

LG UA7500 with a VA panel performed really well in this category. Image scaling from Full HD or even SD materials was surprisingly smooth. The picture looked smooth, edges were not overly jagged, and the television retained a considerable amount of detail, meaning that even older films did not lose their character. It particularly excelled with faces – there were no artificial contours or 'mask' effects, which often occur in cheaper models. The way the television handled tonal transitions in lower quality materials is also noteworthy. Thanks to digital processing, colours did not bleed into each other, and gradients appeared natural and smooth. There was no excessive smoothing of the image or loss of cinematic grain. This makes the UA7500 great for everyday content – from terrestrial television, through sports, to YouTube, where we often watch materials in various resolutions.

The 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 entry-level range.

In addition, there are features for improving fluidity and reducing motion blur in films. The "Motion" option allows precise adjustment of the effect on a 10-point scale, which offers great personalisation possibilities - everyone can set the fluidity as they like.

The LG UA7500 is a television with a 60 Hz panel, so it's difficult to expect much admiration in this category. It's more of a screen intended for everyday content or an evening film viewing rather than for following dynamic sporting events or playing action games. It's clear that the manufacturer targeted this model specifically at that group of consumers – and it performs correctly in that regard. We have the TruMotion feature available, which is a motion smoother. It's simple, with only one slider, but it can introduce a noticeable difference. At the lower settings, the image appears more raw and cinematic, whereas at higher values, the motion becomes smoother and more pleasing to the eye.

The TCL C75B is undoubtedly a television designed with gamers in mind. It offers nearly everything that even the most demanding console users could need. With the implementation of fully capable HDMI 2.1, the television supports features like ALLM (Automatic Low Latency Mode) and VRR (Variable Refresh Rate) – operating within the full potential of the television, up to 240 Hz in Full HD resolution.

Additionally, the television supports advanced HDR technologies, including Dolby Vision and HGiG, allowing for even better detail reproduction in HDR-optimised games. The C75B is also equipped with a very convenient interface for gamers in the form of Game Bar, where all key parameters such as refresh rate, input lag, and image settings can be checked – all within a single click.

In a nutshell: the C75B is a great choice for gamers, offering a wide range of features that allow users to fully enjoy the capabilities of modern consoles and games.

The LG UA7500 is a television that can be confidently recommended to "casual" gamers. It lacks a 120 Hz panel and HDMI 2.1 ports, so it cannot fully utilise the potential of modern consoles. However, the manufacturer has included several features that can enhance the gaming experience. Notably, the Game Bar stands out – a very well-designed panel where you can quickly preview and change the most important settings. From this interface, we have access to features like ALLM mode (automatic switching to game mode) and frame synchronization, which is VRR. The VRR range is limited – it works from 48 to 60 Hz – but the mere presence of this feature in such an affordable television makes a positive impression.

Additionally, it supports HGiG, which is the HDR calibration mode for gaming. It sounds good, but based on our testing experiences, we already know that for the UA7500, this option doesn't make much sense. The television doesn't handle HDR very well, so paradoxically, we achieved better results with this mode disabled. This is another indication that the UA7500 is more of a screen for occasional gamers who value simplicity and convenience rather than for those seeking the full experience from the latest consoles.