TCL C655 / C69B (43" - 50") vs Samsung U8000F (VA)

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.

While the U8000F with a VA panel can still be praised for decent blacks, there are no longer any reasons to be impressed regarding brightness – especially in HDR scenes. The television reaches a maximum of just under 250 nits, which is simply too little to talk about any impressive light effects. Bright elements come off as pale, and scenes that should shine look rather flat. An interesting situation was observed during the test of a scene from the movie Sicario 2 – the screen noticeably darkened, as if the television were trying to hide its limitations in displaying blacks. One might get the impression that the device artificially darkens the image to improve contrast, but in practice, the effect doesn't make much of a difference, other than that we see less on the screen. Additionally, there's the issue of colors – the U8000F does not support a wide color gamut, so don't expect vibrant, saturated shades known from better models. The HDR image here resembles slightly brightened SDR and… maybe that’s even a good thing. For this model, it's not worth setting expectations for cinematic experiences – it's better to treat HDR as a modest addition.

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.

The Samsung U8000F has been tested by us in the best picture mode available out of the box – namely, Filmmaker Mode. This profile is supposed to provide a neutral, cinematic image, free of unnecessary enhancements and artificial beautifications. In the case of SDR content – mainly in HD or SD resolution – the television performed surprisingly well right out of the box. The only noticeable imperfection was brightness management. The gamma chart showed some deviations – slight brightening or dimming of certain tones – but in practice, it did not significantly affect the viewing experience. For a television in this segment, it performs quite well.

However, the situation is considerably weaker in HDR mode. Although white balance was still acceptable, color errors were very pronounced. In the Color Checker test, almost every sample was outside the target point, and the image itself looked unnatural – colors were shifted, sometimes too cool, at other times simply dull and lifeless. The main problem lies in the hardware limitations – the U8000F does not support the wide color gamut of DCI-P3, so it is physically unable to reproduce the colors anticipated by the HDR standard. And unfortunately, this is evident in almost every more demanding scene.

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.

Right out of the box, the U8000F offered quite a decent picture in SDR for its price range. However, we managed to slightly enhance it – we reduced a subtle purple tint and improved the gamma characteristics, giving it a more natural curve. Despite these adjustments, the TV still tends to brighten the brightest details a bit too aggressively – the gamma graph shows a clear dip that cannot be fully corrected.

On the other hand, in HDR mode, it is noticeably weaker. It's hard to talk about any significant improvement here – despite attempts to tweak the settings, the picture still presents considerable color errors. A Delta E exceeding 7 means noticeable deviations that couldn't be effectively reduced. Unfortunately, this is a limitation of the design itself – the U8000F was simply not designed for serious HDR. In everyday SDR viewing, it performs quite well, but when it comes to HDR content... it's best not to have too high expectations.

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.

When it comes to how the Samsung U8000F handles lower quality materials, we must admit that Samsung has made progress compared to its predecessor from last year – the DU7192 model, which theoretically occupies the same position in the lineup. This year's model is equipped with a feature for improving the fluidity of tonal transitions, which has been implemented much better than last year. Yes, the TV still uses quite strong algorithms that can distort details or remove film grain, but despite that – it can be confidently said that it works effectively. However, not everything went perfectly. The U8000F has noticeable issues with slight image stuttering when watching very old content in very low resolution. If someone plans to play their old VHS tape, they should be prepared for the image to appear slightly "choppy."

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 Samsung U8000F is equipped with a 60 Hz panel, so right from the start, it's clear that we shouldn't expect miracles. This is simply standard in this class – sufficient for everyday viewing but without any frills. The TV offers one motion enhancement slider – a feature called "Motion Blur Reduction," which allows us to adjust the smoothness of the image in movies. Higher settings give a more "theatrical" and smoothed effect, while lower settings help maintain the original character of the film with a slight 24p effect. An interesting feature is "Clear Motion LED," which is a BFI mode – inserting black frames between image frames to improve motion sharpness. However, in practice, the screen flickers heavily when it's activated, and it should be treated more as an experiment than something that genuinely improves gaming comfort.

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.

[UPDATE] We have updated our 2025 Samsung TV reviews following the release of firmware version 1131, which officially restores the essential HGiG (HDR Gaming Interest Group) support.

Samsung U8000F offers a basic set of features for gamers, which nonetheless may be sufficient for less demanding users. It has an automatic game mode – when a game is launched on the console, the TV automatically switches to low latency mode, significantly improving response time. It also includes a VRR feature, or variable refresh rate, which operates in the range of 48 to 60 Hz. This means that both Xbox and PS5 will not produce a "tearing" effect on the screen – as long as we stay within this range.

And unfortunately, that's about it when it comes to advantages. Additions like Game Bar or higher refresh rates are reserved for higher models of Samsung from the 2025 line. In theory, the TV also supports the HGiG function, which should adjust the HDR image to the intentions of game developers. Unfortunately – even though this feature appears in brochures and marketing materials – its configuration on the Xbox console turned out to be... impossible in practice.