TCL P755 vs Panasonic W85

TCL P755 provides average HDR effect quality. The maximum brightness of the TV is slightly below 300 nits. Such brightness limits the intensity of bright areas in HDR content. In practice, this means that bright elements may not be sufficiently pronounced, affecting the overall impression of contrast. However, the TV offers wide coverage of the DCI P3 colour gamut, reaching about 93%. As a result, colours are vibrant and saturated, significantly improving colour reproduction quality in HDR content. Despite the limited brightness, the wide colour range allows for richer and more realistic shades.

Unfortunately, we don't have good news here. The Panasonic W85B is quite a dark television – its peak brightness doesn't exceed 300 nits, making it hard to talk about any real HDR effect. In practice, this means that scenes which can 'shine' and impress on other screens simply look like regular SDR with a slight colour boost here. Our measurements and film tests confirmed this – regardless of the content, the W85B won't draw anything more from HDR. So if someone is looking for a television specifically for HDR, it's better to look at other models. On a positive note, the W85B does quite well in terms of colours. It's a QLED television, so its colour gamut coverage is wide, and most films and series look natural, without a noticeable 'faded' effect. The colours are saturated, so in everyday viewing, there's no feeling that something is seriously off.

The colour reproduction in the P755 in "Cinema" mode, although it is the best factory setting, leaves much to be desired. The biggest issue is the white balance, where the chart clearly shows a spike in the red colour and a drop in the green colour. This leads to a shift in colours towards red, causing the colours on the screen to appear less natural and may look incorrect, especially in scenes with a white or neutral background. This is confirmed by the "Colour Checker" test, which reveals that the colours are indeed shifted towards red, affecting the realism of the image and reducing the perception of colour depth. In terms of contrast, the gamma chart analysis shows significant fluctuations, particularly in the dark areas of the image, where values drop below the optimal level of 2.4. As a result, darker areas may be displayed brighter than they should be. Additionally, the EOTF curve, responsible for brightness reproduction, sits slightly above the reference curve. The graph shows a slight increase in brightness to about 50%, after which there is only a minor drop. This leads to excessive brightness enhancement in the mid-range of the image and may result in loss of detail and distortion in brighter scenes.

Testing the Panasonic W85B, we obviously started with the Filmmaker mode, as it's the gold standard for watching content "the way the director intended." The problem is that this TV is quite far from those intentions. The biggest issue turned out to be an excess of red – both in SDR and HDR. The image often looked too warm because of this, and in some scenes, it was almost "on fire." Added to this is the issue of brightness management. When we looked at the gamma and EOTF charts, it was clear as day that in most scenes, the TV brightens the image more than it should. The effect was easy to predict. Details can get lost, leading to flattening and clipping across the entire screen. We obviously know how to fix this, but to be fair, it does require a lot of calibration work. Out of the box, the W85B doesn't produce an image close to reference quality – it's more of a TV that, without professional adjustments, will always interpret colours and brightness a bit "in its own way." Unfortunately, this is to the detriment of the viewer.

After calibration, the colour reproduction on the television significantly improves when it comes to SDR content. The colour curves are now close to the ideal value, and the gamma is more stable. Although the dip at the beginning of the graph to the values is still present, the overall accuracy of colour reproduction is much better. The “Colour Checker” test shows that most colour samples have errors below level 2, indicating improved colour fidelity. A few deviations are present, but generally, the colours are now more realistic and consistent with reality.

Calibration also brings improvements in HDR content. The white balance has been corrected, translating to more natural colour reproduction. The EOTF curve, although now closer to the reference curve, still shows a slight boost in brightness at the beginning of the graph. This leads to minor distortions in very bright scenes, but the overall tonality and detail have been enhanced. Dynamic tone mapping works more effectively, improving image quality in bright areas and preserving more details.

Although the image from the device does not achieve full perfection, calibration brings significant improvement. After adjusting the settings, the television performs much better, offering more realistic and accurate colour reproduction in SDR and HDR content. While some shortcomings can still be noticed, calibration effectively eliminates many previous issues, ensuring better image quality and more natural colours.

Fortunately, calibration made a significant difference for the Panasonic W85B, especially for SDR content. Here, the improvement was quite evident – we managed to even out the white balance and reasonably tame the TV's tendency to overly brighten the entire image. The picture became more coherent and the colours gained the naturalness that was lacking in the factory settings. Admittedly, the results from the Color Checker are not perfect, as the W85B has noticeable issues with green saturation, but overall, we rate the post-calibration effect in SDR quite positively. The situation with HDR is a bit different. Here too, we managed to reduce the tendency to warm up the entire scene, so the image performed definitely better than in the factory settings. However, there is still the same problem we mentioned earlier – the TV interprets the image too strongly "in its own way" and brightens the whole screen. And the lack of local dimming only exacerbates this effect. In summary, briefly, in SDR content, the W85B performs really well after calibration and is perfectly suitable for everyday viewing. However, in HDR, even after adjustments, it is still difficult to unambiguously recommend it for more serious viewing.

The “Gradual Smoothing” function works quite well, effectively eliminating visible boundaries between different shades of the same colour. Thanks to it, tonal transitions are smoother. Unfortunately, this function is not available in HDR mode, which can affect the quality of tonal gradation in higher dynamic range materials.

In the case of image scaling, the television does not perform its best. There are noticeable edge cut-offs, particularly evident on the model's figure and the branches of trees. The blurring of details in these areas affects the overall sharpness of the image. This may be noticeable when watching content in a lower resolution. Additionally, SD quality image is displayed with slight cropping at the top as well as the bottom.

With native SDR content, the Panasonic W85B performs very well – tonal transitions are smooth and natural, without artificial bands or clear outlines. However, the situation is worse with lower resolution materials. This is where the TV has the biggest problem with "beautifying" the image. The lack of any menu option to improve gradation means that with older films or materials from YouTube, one can sometimes notice slight issues with colour blending.

Fortunately, upscaling, or enhancing the quality of lower resolution content, performs much better. This is definitely a strong point of this model – the image is scaled cleanly and in detail, and the TV handles this better than one might expect from such an inexpensive setup. This is thanks to the HCX processor, which Panasonic has been developing for years, and it shows that even in the lower series, it can do a good job.

The television offers decent, though not perfect, results in terms of motion smoothness. In the case of movies, the television has a "Flicker Reduction" feature that allows for adjustment of motion smoothness on a scale from 1 to 10. With this option, we can tailor the image appearance to cinema or more theatrical preferences (with lower or higher speed).

At first glance, everything looks good – the Panasonic W85B has a 120 Hz panel and even a 144 Hz mode, so it seems like it should handle smooth motion really well. The problem starts when we delve into the settings. The options for improving fluidity are supposedly present in the menu, but in practice… they don't change anything. No matter what we choose, the image looks the same. On top of that, there’s a lack of BFI, or black frame insertion, which in many TVs helps sharpen motion. And suddenly, it turns out that despite the strong panel, the W85B doesn’t give us any real tools to adjust that motion to our needs. It’s only good when the source itself operates at a higher frequency – for example, games at 120 Hz. But when it comes to movies or sports, we just have to accept what the TV shows us because there’s nothing more that can be done about it.

The device offers a range of features useful for gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the TV to low latency mode, significantly improving responsiveness to commands from the controller and minimising input lag. VRR synchronises the screen refresh rate with the number of frames generated by the console, eliminating the tearing effect and providing smoother gameplay. Dolby Vision for gamers enhances picture quality by offering better colour and contrast reproduction in games that support this format. The Game Bar feature allows quick access to game settings and monitoring of key parameters such as response time.

However, the TV has some limitations. The 60 Hz panel prevents the display of signals with higher refresh rates at different resolutions, which may affect the fluidity of the image in dynamic games. Additionally, the lack of support for G-Sync technology for PC may impact the quality of gameplay on a computer. It is also worth noting that the HGiG mode, which aims to improve image quality in HDR games, does not work correctly on this model, negatively affecting the visual experience in HDR-supported games.

On paper, the Panasonic W85B looks really solid. It has two full HDMI 2.1 ports, support for ALLM, variable refresh rates, Dolby Vision in games, and of course, a high refresh rate for the panel itself. Additionally, there's the characteristic Panasonic game bar, which allows you to view key parameters with a single click and quickly change them if needed. It sounds great, but the problem arises when we enable HDR. Here, the W85B really struggles because the implementation of HGiG is practically nonexistent – the TV poorly manages brightness, and instead of faithful images, we get scenes that are too bright, sometimes even blown out. The solution? The simplest one – turn off HDR in the console settings and keep everything in SDR. And here it gets really interesting, because in this scenario, the W85B shows its better side. Low input lag, high smoothness thanks to 120 Hz – all of this makes gaming look phenomenal. Yes, HDR can be skipped, but if responsiveness and smooth gameplay are the priorities, the W85B provides plenty of fun.