TCL C655 / C69B (43" - 50") vs TCL P7L / P79L

The quality of the HDR effect in the TCL C69B / C655 television is quite average. A brightness level of 350 nits, while not the worst, still does not allow for fully enjoying HDR effects, which require higher luminance to show their strength. Additionally, despite the use of a quantum dot coating (QLED), the television offers average coverage of the wide DCI-P3 color gamut at 91%, which may limit its richness of colors in HDR content.

The biggest limitation of the TCL P7L in HDR is simply brightness. The TV doesn't have a large 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 dynamic range is closer to good SDR than to what brighter models show. That doesn't mean the P7L can't handle HDR at all — the issue is mainly a lack of sufficient backlight power.

Looking at color, the situation is a bit better. The TV covers about 91% of the DCI-P3 gamut and about 68% of the wider BT.2020 color space, so for its price class the color range is quite decent. TCL markets this model as QLED, though the nature of the solution used is closer to a PFS phosphor-based backlight than a classic quantum-dot layer. What matters most to viewers, however, is the result: more saturated colors are available.

The television TCL C69B / C655 tested in movie mode unfortunately does not meet expectations regarding color accuracy. Although movie mode suggests better reproduction, it has little in common with film. There are quite a few errors visible, especially in white balance – both for HD and 4K HDR content – where the dominance of the blue color is very apparent. For the viewer, this means that the image becomes unnaturally cool, affecting the overall perception of colors and the visual impression. The color checker confirms these errors, showing that colors shift to cooler shades.

As for brightness characteristics and the associated contrast, gamma is very unstable for material, which can make the image slightly darker. The EOTF curve for 4K material shows some errors, with significant deviations at the end of the chart, negatively affecting the perception of darker areas of the image.

In Film mode the TCL P7L performs fairly well without major adjustments, especially with typical SDR material. The white balance is relatively even, although as brightness increases there is a slight rise in red and blue and a bit of a shortage of green. This does not produce a strongly noticeable tint and most colors remain close to their reference points. The ColorChecker confirms this, with a large portion of errors falling below a level that would notably bother viewers during normal watching. We have more concerns about the gamma response. In the darkest parts of the image the TV runs it noticeably above the reference, so some shadow detail can be a little too dimmed. The curve then settles and for much of the range it is close to the intended target. As a result SDR generally looks natural, but in dark scenes the P7L can lose some subtlety. In HDR the factory setting is less precise. As brightness increases an excess of blue becomes more pronounced, making the image look cooler than it should. The number of larger color deviations also grows, particularly in brighter hues. The EOTF curve itself is handled fairly conservatively, with the TV showing the image darker than the reference over a large portion of the range. For a budget model, however, the factory Film mode settings are not bad.

After calibration, the movie mode on the TCL C69B / C655 television improves in quality. The most significant improvement can be seen in tonal quality, and the white balance is much better – without major errors. We will no longer see an excessive dominance of cool tones. Gamma has also been improved, which translates to a more stable representation of brightness and contrast. However, due to the limitations of the television's average color palette, Colour Checker tests for 4K materials did not achieve remarkable results. Despite these technological limitations, the image has become more authentic, positively influencing the reception of film content.

After calibration, the TCL P7L can deliver a really pleasant picture, especially with classic SDR material. We managed to very effectively even out the white balance, and the gamma curve now tracks close to the target value of 2.4. You can also see this in the color measurements, as most errors dropped noticeably, and in everyday viewing it's hard to find any strongly visible inaccuracies. Movies, series, YouTube, or regular TV therefore look more natural, without unnecessary warming or a cool cast. For a model in this price range, the result in SDR is really very good.

With HDR the situation gets more complicated. Calibration helped improve the white balance and tidy up some deviations, but here the panel's limitations become increasingly apparent. The P7L has relatively low brightness and can't maintain appropriate luminance for more saturated colors, so some errors remain even after careful tuning. In other words, settings can improve how the TV interprets the signal, but they can't overcome its physical capabilities. That's why calibration makes the most sense for this model primarily with SDR.

The "Gradual Smoothing" function works very well on the TCL C69B television and, surprisingly, does not remove desired effects like film grain – unlike some solutions from other manufacturers. Unfortunately, the image scaling looks poor. The TV artificially sharpens the image, causing the edges of objects to be heavily jagged. This state of affairs may appeal to some users who prefer a more "hard" look of the image, but it is not an ideal solution for those who value naturalness and the smoothness of details.

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

Upscaling itself also performs well. Lower-resolution material is scaled correctly, without excessive sharpening or adding artificial outlines around objects. Of course the P7L won't turn a very poor source into 4K-quality footage, but for regular TV the result is simply solid. For a model in this class there is little to criticize.

The TV TCL C69B / C655 in its smallest variants offers decent, although not perfect, results in terms of motion fluidity. In the case of movies, the TV has a "Flicker Reduction" function that allows for motion fluidity adjustment on a scale from 1 to 10. With this option, we can adjust the appearance of the image to cinematic or more theatrical preferences (with lower or higher speed).

The TCL P7L uses a panel with a native 60 Hz refresh rate 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 the typical judder, but it does not deliver the smoothness of true 120 Hz panels.

The TCL C69B / C655 television in its smallest variants offers a range of features dedicated to gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the television to low latency mode, improving responsiveness and minimizing delays in control. VRR allows for synchronization of the screen refresh rate with the number of frames generated by the console, eliminating tearing, resulting in smoother gameplay. Dolby Vision for gamers ensures better color and contrast representation in games that support this format, resulting in better image quality. Meanwhile, Game Bar provides quick access to game settings and allows monitoring of key parameters, such as input lag.

However, the television has certain limitations that may affect gaming comfort. The 60 Hz panel does not allow for displaying signals with a higher refresh rate, which may impact image smoothness in dynamic games. The lack of support for G-Sync technology for PCs may also be noticeable when gaming on a computer, especially with demanding, fast-paced titles.

For such an inexpensive TV, the P7L has quite a lot to offer gamers. It has ALLM, VRR, Dolby Vision for gaming, and TCL adds its Game Bar, which lets you quickly view 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 thing starts when you give up on 4K. At that resolution the TV runs at a maximum of 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 you can really notice the difference in smoothness, 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. Even so, it's precisely those extra modes that make the P7L perform really well for gaming.