TCL C655 / C69B (43" - 50") vs Sharp GP7

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

In terms of HDR, Sharp GP7 can surprise us pleasantly. The maximum brightness of around 500 nits is the threshold at which the real advantages of high dynamic range begin to be visible. During our tests, we achieved stable values between 430 and 500 nits, which translated to a clearer distinction of elements in both bright and slightly darker scenes. Additionally, it has a DCI-P3 colour gamut coverage of about 95%, allowing for vibrant, visually pleasing colours. Of course, it isn't top-tier, but for this price range – a big plus.

Tested in film mode, the television TCL C69B / C655 unfortunately does not meet expectations regarding colour accuracy. Although the film mode suggests better representation, it has as much in common with film as nothing at all. There are numerous errors, particularly in the white balance – for both HD and 4K HDR content – where the dominance of blue is very apparent. For the viewer, this means that the image becomes unnaturally cool, affecting the overall perception of colours and the visual impression. The colour checker confirms these errors, showing that colours shift towards cooler shades.

When it comes to brightness characteristics and related contrast, gamma is very unstable for the material, making the image potentially slightly darker. The EOTF curve for the 4K material shows some errors, with significant deviations towards the end of the graph, which negatively affects the perception of darker parts of the image.

Out of the box, in movie mode, GP7 doesn't fare badly at all. In HD materials, we noticed slight disturbances in white balance - drops in red and blue that made the image take on a somewhat greenish hue. This is noticeable, for instance, on the faces of characters, which become less lifelike. The gamma is slightly brighter in places, resulting in less deep blacks. In 4K HDR content, a cooler, bluish tone also emerges, making the colours appear less natural. On the other hand, looking at it from a "straight out of the box" perspective, these settings aren't bad - a few minor adjustments will suffice, and with the help of special tools, we will try to improve them.

After calibration, the movie mode on the TCL C69B / C655 television improves in quality. The most significant enhancement can be seen in tonal reproduction, and the white balance presents itself much better – without major errors. We will no longer see the excessive dominance of cool shades. The gamma has also been improved, resulting in a more stable representation of brightness and contrast. However, due to limitations in the average colour palette of the television, Colour Checker tests for 4K materials did not achieve outstanding results. Despite these technological limitations, the image became more authentic, positively impacting the reception of film content.

Calibration really makes a difference in Sharp GP7. After making adjustments, we achieved a better white balance in HD content, and the colours started to look much more natural, with minimal deviations and no clear dominance of individual hues. In 4K HDR, the change isn't as spectacular, but it's still noticeable. The gamma has been brought to a more neutral level, although a slight boost in the brightest details on the screen is still evident. The inability to control dynamic tone mapping limits our manoeuvrability, but nonetheless, this is a significant step forward compared to the factory settings.

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

The TV can scale lower quality content quite well. Our test patterns were well reproduced, and although there was minimal banding with fine, delicate shapes (such as thin branches), it still looked satisfactory. Additionally, Sharp GP7 offers a “10-bit colour reproduction” feature to smooth tonal transitions in poor quality materials. It is useful, but at the cost of some details, so we recommend turning it on only when we're really watching something of poor quality.

Television TCL C69B / C655 in its smallest variants offers decent, though not perfect, results in terms of motion smoothness. For movies, the television features a "Flicker Reduction" function, which allows for adjustment of motion smoothness on a scale from 1 to 10. Thanks to this option, we can tailor the image appearance to either a cinematic or more theatrical preference (with less or greater speed).

With a 60 Hz panel and average response time, it's hard to expect miraculous smoothness. In dynamic tests, like the one with the “little green man”, it’s clear that the picture can blur and occasionally lose sharpness. For watching movies and series, this is acceptable, especially since you can use the motion smoother with three levels of adjustment. However, if we care about ultra-smooth sports broadcasts or super-responsive gameplay, we might feel a bit dissatisfied.

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

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

Let's not kid ourselves – GP7 Sharp is not a television for the most demanding console gamers. Yes, we have ALLM, which automatically switches the TV to low latency mode, but it lacks VRR or G-Sync. We also won't find any advanced menu to help adjust settings during gameplay. Dolby Vision in games? It's there, but with such a large input lag that it's hard to talk about comfort. If we play occasionally and don't aim for the highest standards, it can be managed, but tech enthusiasts will face disappointment.