TCL P7K / P79K vs Sony Bravia 3 50' (VA)

When evaluating the HDR effect, we must make it clear and without marketing embellishment: the P7K/P79K is not and was never meant to be a master in this field. The maximum peak brightness that this panel can generate is only around 300 nits. This is a borderline value, a sort of thin red line between what can be considered a barely satisfactory HDR signal and what is really not much different from standard dynamic range (SDR), unfortunately leaning towards the latter. Synthetic tests found brutal confirmation in reality – our measurements taken during movie screenings showed that luminance in key bright parts of the content rarely exceeded the threshold of 200-250 nits. Therefore, this is not a television that would allow content produced in a wide tonal range to truly shine, and we must openly acknowledge that.

Unfortunately, the issue of color reproduction is presented equally restrained. Although the manufacturer positions this model in the "QLED" family, thanks to the use of a PFS LED filter, the results do not match the heightened expectations. The coverage of the wide DCI-P3 color gamut is only 86%. Compared to the market, this is at best an average result, as most devices that employ additional layers to expand the color spectrum easily achieve values at a minimum level of 90-92%.

Interestingly, in the 50-inch version, the Bravia 3 performs slightly better in terms of brightness than its larger variants. In measurements, it achieved around 370 nits, which still aren't values that can compete with top-end televisions, but enough to speak of a semblance of HDR effect. For some users, this level will be acceptable, while others will view it as typical for SDR content, where spectacular bursts or strong contrasts are not expected. It must be clearly stated that the Bravia 3 is not a television for those who want to extract maximum quality from the most challenging film materials.

However, this does not mean that everything is mediocre. Sony equipped this model with an additional PFS filter, which works similarly to solutions used in QLED televisions. As a result, the coverage of the DCI-P3 color palette increased to over 91 percent. In everyday use, this means livelier, more saturated colors and a more pleasing image texture. Even if strong lighting effects are lacking, movies and series can look significantly more attractive than in its predecessor, the X75WL.

Every reliable image quality assessment must begin by selecting the most optimal factory mode. In the case of the tested model P7K/P79K, the choice was confidently made for the "Film" mode. It is this mode that presents an image closest to the creators' intentions, avoiding both the exaggerated brightness of dynamic mode and the excessive dimming known from eco settings. And it must be admitted that, for a device in this price range, the factory calibration is surprisingly decent, although it is not free from a few stumbles. The most noticeable flaw turned out to be an imperfectly adjusted white balance. A slight dominance of the blue component gives the image a subtly cool, chilly character, thus deviating from the exemplary neutrality that the director wanted to show us. The television performs much better in reproducing the grayscale in a standard dynamic range – the gamma curve is executed almost perfectly. A minor reservation can only be made for the darkest parts of the image, where a slight deviation from the norm causes a loss of some detail in the shadows. The most serious challenge for TCL's software, however, was the interpretation of the HDR signal, which is illustrated by the EOTF curve. The television follows its own, rather free path here – the darkest details are disproportionately brightened, followed by a noticeable slowdown in brightness increase for midtones. Fortunately, most of these imperfections are software-related issues that can be eliminated. With this thought in mind, we proceeded to the professional calibration process.

We primarily tested the Sony Bravia 3 in movie mode, which immediately proved to be the best choice among the factory settings. It's not a perfect picture, but compared to eco mode, which the TV suggests right out of the box, the difference is clear and positive. In movie mode, one can notice a certain problem: the picture seems too warm, which results from a lack of blue in the white balance. Despite this, in SDR content, the final effect can still be considered quite decent and satisfactory for everyday viewing. Much more serious errors appear in HDR materials. The Color Checker analysis showed significant deviations, and poor brightness management, combined with limited color gamut coverage, further exposes the shortcomings of the picture in this mode. All this makes HDR on the Bravia 3 look unconvincing and can spoil the impression left by the quite decent SDR content settings. Fortunately, this is not a hopeless situation. All sorts of errors can be somewhat mitigated, and some can even be completely corrected through professional calibration. That’s why we decided to see how the TV would perform after such adjustments.

The calibration process turned out to be a home run, especially in the context of standard dynamic range (SDR) content. We successfully managed to eliminate the TV's tendency to emphasize cool tones, restoring the whites to their natural neutrality. Furthermore, precise adjustments allowed us to correct a slight error in the gamma curve, so the darkest areas of the image regained their proper depth, without a trace of unnatural brightening. The effects are measurable and impressive – in the ColorChecker test, the vast majority of color reproduction errors fell below the perceptual threshold, achieving a deltaE value below 2. This is a result that would not shame much more expensive constructions. Unfortunately, in the case of HDR content, we hit a wall in the form of the inherent limitations of the panel itself. And although we managed to bring the colors in line, the software's specifics mean that the TV still adapts brightness in its own way, as evidenced by the persistent, non-standard EOTF curve. In summary, calibration brings tremendous added value, but one must be aware that it cannot overcome certain physical barriers. A slight boost in black levels, resulting from the lack of local dimming, and limited peak brightness mean that HDR content will not always be able to showcase its full potential. This is simply not the main task of this display; its true strength, especially after professional tuning, lies in the viewing of SDR materials.

The calibration allowed us to extract significantly more from the Bravia 3 than we could have expected at the beginning. Most importantly, we managed to address the deficiency of blue, which previously caused a noticeable warming of the image. After a slight adjustment in the white balance, most of the errors in the Color Checker measurements for SDR content practically disappeared. The shades of white gained naturalness, and the brightness management in gamma stabilized to a level nearly ideal, not exceeding the threshold of human eye perception. One can therefore confidently say that in SDR content, after a few adjustments in settings, the Bravia 3 performs really impressively. Much worse, though still definitely better than before calibration, is its performance with HDR content. The white balance has been brought under control, but the limitations of the IPS panel are insurmountable. The lack of local dimming means that even the smallest elements can be overexposed, which is immediately noticeable. Color-wise, the effect is also improved, although far from perfect – many errors still exceed four, or even five delta E units, meaning they remain visible to the human eye. It was already clear that the Bravia 3 is not a television designed to impress with HDR quality. Nevertheless, it is gratifying that in SDR content, after calibration, the image can look truly great, and in this category, the television surprised us positively.

After a series of harsh evaluations, fortunately, the time comes for praise, and this is due to the TCL AiPQ image processor for its work in digital processing and content scaling. It should be noted right away that we are not talking about the level known from flagship designs; nevertheless, in the price segment represented by the P7K/P79K, the results achieved are more than solid. The feature that smooths tonal transitions performs particularly well, effectively eliminating posterization, which are the characteristic bands often visible in materials with higher compression, such as from the YouTube service. The algorithm can elegantly remove unwanted gradients, which ultimately looks really good. The television also competently handles upscaling, which is the task of raising low-resolution materials to 4K standard. The output image, although it may seem a bit too sharp out of the box, fortunately, is not a problem. The software allows for easy adjustment of this parameter using a sharpness slider, so the final appearance can be easily tailored to personal preferences.

Bravia 3 brings something more to the Sony TV family than just a common name. It stands out primarily for its ability to enhance the quality of weaker materials thanks to the processor used. Of course, we won't find the advanced XR chip known from more expensive models here, but still, it must be admitted that the image at lower resolutions looked surprisingly good. The upscaling worked effectively, and most parts of the screen were free from the typical excessive edge jaggedness found in budget constructions. The feature that improves the fluidity of tonal transitions is also noteworthy. In the high setting, it works really well, effectively masking gradation imperfections without significant loss of detail. It does happen that the algorithm overly smooths elements that should remain sharp - for example, faces - however, in general, the effect is beneficial. The best results were achieved precisely at the highest setting, and this option could be recommended to people watching lower quality content.

The issue of fluidity and sharpness of the image in motion is inextricably linked to the fundamental parameter of the panel, and in the case of the TCL P7K/P79K, we are dealing with a panel that has a native refresh rate of 60 Hz. This specification already defines its capabilities and makes it difficult to unequivocally recommend it to enthusiasts of dynamic sports broadcasts. During rapid camera movements, the image loses sharpness, and the panel itself also shows a slight tendency to blur, which may be noticeable to more sensitive viewers. Fortunately, not everything in this aspect has been left to chance. The manufacturer has implemented a simple motion smoothing system, which is primarily used in film materials recorded at 24 or 30 frames per second. Thanks to a dedicated slider, the user can independently decide on the final character of the motion – from a fully cinematic, slightly juddery image to achieving a very smooth, almost theatrical effect. It is a simple yet effective tool that allows users to tailor the viewing experience to their own preferences.

The fluidity of motion has never been a strong point of televisions equipped with 60 Hz panels, and the Bravia 3 is no exception. Nevertheless, Sony has added something that may appeal to those who are more sensitive to the way images are displayed. We are talking about the proprietary motion smoother, Motion Flow, which gives users a lot of adjustment options. Thanks to it, the image can become smoother, almost theatrical, or you can stick with a more cinematic style characterized by the jaggedness that many people simply associate with the filmic atmosphere. These features work for content with lower frame rates, such as movies and series recorded at 24 or 30 frames per second, which are the materials we encounter every day. This is where the motion smoother proves to be one of the most important features in everyday use of the television, and here the Bravia 3 performs really well.

Although on paper the native 4K@60Hz matrix might suggest that the TCL P7K/P79K is not a TV tailored for gamers, the reality turns out to be surprisingly different. On the contrary, the manufacturer has ensured a rich package of features that make it a very friendly companion for next-generation consoles. Onboard, we find key technologies such as ALLM, which provides automatic switching to low-latency mode, and VRR, or variable refresh rate, which eliminates screen tearing. The list is completed by support for Dolby Vision Gaming and a simple yet functional Game Bar. However, the real and extremely pleasant surprise is something else. It turns out that the TV easily supports high refresh rate signals of 120 Hz, but at lower resolutions – 1080p and 1440p. This is fantastic news for console owners who know full well how rarely games run in native 4K at a full 120 frames per second. The ability to choose between higher resolution and doubled smoothness is therefore an extremely sensible compromise.

In summary, although the P7K/P79K may not be the target screen for the most avid tournament gamers, it offers a package of options for the casual or occasional console user that is hard to find among many competitors at this price point.

Bravia 3 is not equipment for e-sports players or fans of late-night marathons with a controller in hand. The lack of 120 Hz refresh rate and HDMI 2.1 ports closes the topic before it even gets a chance to develop. This is a television for a casual gamer who will play FIFA or racing games after work, not for someone who measures every frame in a spreadsheet. Nevertheless, Sony has added a few nice extras to make it feel less bare. ALLM works as it should, automatically switching the television to game mode (low latency). There's even a simple Game Bar that is clear. However, the biggest curiosity here is the PlayStation Portal app. Thanks to it, you can launch games from PS5 wirelessly and see them immediately on the television screen. It sounds great, but it only takes a few minutes to feel significant lag. In our opinion, it's more of a showcase of capabilities than something you can reliably use every day. If someone really wants to play, it's better to connect the console with an HDMI cable and forget about wireless issues.