TCL C655 / C69B (55"-85") vs TCL P7L / P79L

Overall, the quality of the HDR effect in TCL C655 / C69B looks quite promising. The average value in the test patterns is around 450 nits, which already allows you to feel the light effects and better image dynamics. However, as mentioned earlier, this effect may be somewhat subdued by slight differences in bright and dark shades, resulting from the lack of local dimming technology. However, the DCI-P3 colour gamut coverage of 94% deserves high praise, and this is possible due to the use of a quantum dot (QLED) panel. This makes the colours vibrant and well-reproduced when watching HDR content.

The biggest limitation of the TCL P7L in HDR is simply brightness. The TV doesn't have much luminance headroom, so strong highlights, sunlight or small light sources can't clearly "pop" out of the image. As a result, even well-produced HDR material looks fairly restrained and, in terms of dynamics, is closer to good SDR than to what brighter models show. That doesn't mean the P7L completely fails at HDR; the issue is mainly a lack of sufficient backlight power. Looking at colours, the situation is a bit better. The TV covers roughly 91% of the DCI‑P3 gamut and about 68% of the wide BT.2020 space, so for its price class the colour range is quite decent. TCL markets this model as QLED, although the nature of the solution used is closer to a PFS phosphor‑based backlight than a classic quantum dot layer. What matters most to the viewer is the effect: more saturated colours are on offer.

The TCL C655 / C69B television offers a film mode that has been tested for colour reproduction quality. Although this mode is called film mode, it unfortunately has quite a few errors that the director would certainly not want to see when filming their work. Starting with image analysis, it's worth looking at the white balance – both in HD content and 4K HDR, the white balance has significant issues. In both cases, the red colour dominates, resulting in colours that are too warm, with an overall pink or yellow tint. This can be seen in the image below from the film "Star Wars." The Colour Checker test confirms these errors – the colour samples stray into incorrect shades, affecting the overall colour fidelity. The brightness characteristics are a lesser issue. However, they are not without flaws either. The gamma chart shows a strong spike at the beginning, which can cause the image to be overly bright, and the EOTF curve responsible for brightness in 4K HDR content also has significant fluctuations – it's evident how the television tries to maintain appropriate brightness, but it doesn't always succeed effectively.

In Film mode the TCL P7L performs quite decently without major tweaks, especially with ordinary SDR material. The white balance is relatively even, although as brightness increases there’s a slight rise in red and blue and a bit too little green. That doesn’t create a strongly visible colour cast and most colours remain close to their reference points. The Colour Checker confirms this, with a large portion of errors falling below the level that should particularly bother during normal viewing. We have more remarks about the gamma response. In the darkest parts of the image the TV drives it noticeably above the reference, so some shadow detail may be a little too dim. The curve then settles and for much of the range it’s close to the intended targets. As a result SDR generally looks natural, but in dark scenes the P7L can lose some subtlety.

In HDR the factory setup is less precise. As brightness increases the excess blue becomes more pronounced, so the picture can look cooler than it should. The number of larger colour deviations also rises, especially in brighter colours. The EOTF curve itself is handled fairly conservatively, with the TV showing the image darker than the reference over much of the range. For such an inexpensive model, the factory Film mode settings are not bad.

After calibrating the movie mode of the television TCL C655 / C69B , the white balance has been adjusted, and the colours look as they should – which is confirmed by only slight deviations in the Colour Checker test. The gamma is really good, which ensures that the television shouldn't have any issues with brightness in low-resolution material. Unfortunately, a similar EOTF characteristic is still noticeable, which is a natural occurrence in televisions that do not have local dimming – they simply struggle to "shine" brighter in a given part of the screen. Despite this design limitation, which cannot be bypassed, we recommend making adjustments in the settings, as the overall colour presentation looks really very good.

After calibration the TCL P7L can produce a genuinely pleasant picture, especially with conventional SDR material. We managed to even out the white balance very well, and the gamma curve now tracks close to the target value of 2.4. This is also evident in the colour measurements, as most errors have fallen significantly and in everyday viewing it’s hard to notice any major inaccuracies. Films, series, YouTube and regular TV therefore look more natural, without unnecessary warmth or a cool tint. For a model at this price point the SDR result is really very good.

In HDR the situation becomes more complicated. Calibration improved the white balance and corrected some deviations, but here the panel’s limitations become increasingly apparent. The P7L has relatively limited brightness and can’t sustain appropriate luminance for more saturated colours, so some errors remain even after careful tuning. In other words, settings can improve how the TV interprets the signal, but you can’t overcome its physical capabilities. That’s why calibration is most worthwhile for SDR on this model.

Television TCL C655 / C69B handles tonal transitions in low-quality materials fairly well. The "Gradual Smoothing" feature on low settings effectively smooths out tonal transitions, but it also blurs important details, such as the texture of objects. A positive aspect is that it does not negatively affect film grain, which helps to maintain the natural look of the image. In terms of digital processing, the television adds artificial sharpness, which some users who prefer a sharper image might appreciate. However, for those who prefer a softer look, this may be a drawback. Another downside is that the image has been significantly cropped due to the so-called overscan, which reduces the field of view and cuts off the edges of the image.

In this respect the TCL P7L performs surprisingly well, especially for such an inexpensive TV. The banding reduction feature, which in many budget models does little or nothing, actually manages to improve the picture here. It doesn't remove all banding completely, but it can noticeably reduce posterisation and make trickier gradients look more natural. In this price segment that's a genuinely pleasant surprise.

The upscaling itself also looks good. Lower-resolution material is upscaled properly, without excessive sharpening or adding artificial edges around objects. Of course the P7L won't turn a very poor source into a 4K-quality picture, but for regular TV the result is simply solid. For a model at this price point there are few major complaints to make.

The television C655 / C69B is equipped with a 4K@60 Hz panel, which means it's best suited for watching movies and less dynamic content. It also features a "Flicker Reduction" function, allowing users to adjust the smoothness of the image – they can choose whether they prefer smoother motion or a more cinematic, frame-like effect. The television can also adapt to lower resolutions, such as Full HD and 2K at 120 Hz, which will surely please gamers by offering a smoother image at the cost of resolution. It’s worth noting that this feature is available in sizes starting from 55"+. Additionally, the largest variant, 98", is equipped with a 144Hz panel with full motion smoothing.

TCL P7L uses a native 60 Hz panel at 4K resolution, and that's how it should be treated in everyday use. For movies the TV mainly offers frame interpolation, so it can smooth motion and reduce noticeable judder, but it doesn't deliver the smoothness typical of true 120 Hz panels.

The TCL C655 / C69B TV offers an almost perfect set of features for gamers, supporting all the key technologies. It has an ALLM feature that automatically switches the TV to low latency mode, significantly improving responsiveness and minimising signal lag, which is especially important during dynamic gameplay. The VRR feature allows synchronisation of the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay.

The TV also supports Dolby Vision in gaming mode, ensuring better colour and contrast reproduction in games that support this format, and the Game Bar enables quick access to gameplay-related settings, such as response time, latency level, and other parameters. Unfortunately, the C655 / C69B does not support 4K resolution at 120 Hz (the 98" variant is the exception), which may be disappointing for more demanding gamers seeking the ultimate smoothness in high-resolution games. However, if we can forgo 4K, the TV offers support for Full HD and 2K at 120 Hz, providing a smoother image and serving as a great alternative for those who prefer higher refresh rates at the expense of resolution.

For such an inexpensive TV, the P7L has quite a lot to offer gamers. It has ALLM, VRR and Dolby Vision in games, and TCL also includes its Game Bar, where you can quickly check key information or change some settings without leaving the game. Not everything is perfect, though, because HGiG doesn't work here as it should, but at this price point it's hard to complain much about the feature set. The most interesting part comes when you give up 4K. At that resolution the TV runs at up to 60 Hz, but at 1440p and 1080p it can already display at 120 Hz. And that's not just a spec-sheet curiosity. In fast-paced games that support that frame rate the difference in smoothness is genuinely noticeable, so if you care more about smoother motion than maximum image sharpness, that mode can make a lot of sense. Of course, that doesn't make the P7L a true 120 Hz TV. Still, it's precisely these extra modes that make the P7L perform really well for gaming.