Samsung DU7192 (VA) vs TCL C6KS / C69KS / Q6CS

In the luminance charts, the peak brightness of the television is around 280 nits. Unfortunately, this value is too low to fully enjoy HDR effects, which require significantly higher luminance. In the tested materials, such as The Meg and Gemini Man, the lack of adequate brightness severely limits the magic of HDR, and the details in the brighter parts of the image are not sufficiently highlighted. For users primarily consuming SDR content, this level of quality may be acceptable, but it is definitely not enough when it comes to HDR. Additionally, the coverage of the DCI-P3 colour palette at 82% does not favour presenting HDR content in its full glory. The limited colour gamut makes it difficult for the television to reproduce vibrant and diverse colours, which is crucial for achieving a cinema-like experience.

And what about HDR? Here, the C6KS performs quite well and – as has become a recurring theme of this review – identically to the C6K model. The maximum brightness generated by this television is around 600 nits. In bright scenes, this translates to a really solid, cinematic effect, and generally, the video materials look good here. However, one must keep in mind the specifics of the dimming algorithm in this model. When very small, bright points (e.g., stars) appear against a dark background, the television can dim them quite significantly. The goal is simple: to eliminate blooming and maintain the best possible blacks. This is quite a reasonable compromise. Most viewers will definitely appreciate deep, "true black" more than additional micro-details, the display of which could cause the screen to appear greyed out. This is the nature of local dimming technology in this price range, and one must be aware of it. It is also worth noting that the TCL C69KS (C6KS) has an additional PFS coating, which is marketed under the slogan of QLED technology. Thanks to this, the colours are saturated and vibrant – our measurements showed that the coverage of a wide colour gamut reaches as much as 92% here.

The best factory mode we relied on during testing turned out to be "Filmmaker". Although this mode is the closest to the creators' intent for films, it is not without certain imperfections. The white balance chart in both SDR and HDR clearly shows a dominance of red, resulting in significant yellowing, particularly noticeable in whites and on actors' faces. In HDR mode, there is also a slight dominance of green, which, however, does not have as much impact on the perception of the image. The gamma, which is responsible for brightness in SDR materials, performed quite well, but with one serious caveat. In the darkest parts of the image, it was too low, causing excessive brightness in those scenes, depriving the film of drama and contrast. For HDR, the white balance remains at a similar level; however, the EOTF curve chart draws attention. At the beginning, the curve clearly bulges, leading to a strong brightness in the darkest scenes. Then the result suddenly drops below the reference line, resulting in an overly dark image and a loss of dynamics in the brighter parts.

In summary, the "Filmmaker" mode, despite its advantages, requires refinement – especially regarding white balance and proper management of brightness in the darkest and brightest parts of the image. In its current form, it may be acceptable for less demanding users, but for viewers expecting precise image reproduction, it may leave much to be desired.

Unlike the more expensive C6K model, the tested C6KS does not have an option in the menu labelled as Filmmaker Mode. Is this a reason to cry? Absolutely not. Our tests have shown that in practice, in terms of colour reproduction, the lack of this specific label makes virtually no difference. The best available Film/Cinema mode here offers an almost identical picture characteristic to the aforementioned Filmmaker in the more expensive model. So we get a very similar image, just under a different name. Therefore, if you were wondering whether paying extra for the C6K gives you better colours – the answer is no, in both cases the base is the same and requires slight adjustments.

Even for its lower models, Samsung offers advanced image calibration tools, which allow for significant improvement of the factory settings. We undertook this task, and the results turned out to be more than satisfying. The white balance, which previously exhibited a strong yellowish tint in both SDR and HDR, was significantly improved. Although slight deviations from the norm can be noticed, the overall effect is much cleaner and more natural than before calibration. As a result, whites and skin tones look much better. We also managed to properly shape the gamma in SDR materials, which allows for achieving the maximum contrast that this television can offer. The EOTF curve, responsible for HDR materials, was also improved – the image is no longer brightened or darkened as drastically as it was before calibration. Despite these successes, HDR materials still struggle with high deltaE error values. The main reason lies in the limited brightness of the television, which does not allow for a complete representation of the dynamics of HDR content. Nevertheless, after calibration, the image is clearly better and more aligned with the creators' intentions. For users seeking the best possible quality in this class of equipment, calibration is definitely recommended.

Thanks to the white balance adjustment, the C69KS's tendency to distort colours has been effectively limited, resulting in a very good final effect. After calibration, we will no longer see excessive warming of scenes in SDR or overly cool tones in HDR. However, it is worth noting the brightness characteristics. In SDR content, it is hard to have any objections – the image looks very good, especially in older films, television programmes, or materials from YouTube. It is significantly more challenging to evaluate the television's performance in HDR. Analysis of the EOTF curve suggests correct behaviour, but its practical variant reveals certain limitations. The C69KS can overly brighten the smallest elements of the frame, while at other times, it can dim the entire scene. Thus, calibration brought clear benefits in terms of colour quality, but certain limitations resulting from the local dimming operation and the way it is controlled by the C69KS cannot be overlooked, as we also saw in the C6K test.

The tonal smoothing function operates in two modes – "off" and "auto". Turning it off causes gradation issues, while the "auto" mode ensures smooth transitions, but at the cost of grain and detail, which are often blurred. Due to these limitations, we do not recommend using this feature, as confirmed by our tests conducted with it turned off.

Scaling of lower resolution materials in this model is not impressive. Details are blurred, and the edges of objects may contain artifacts. This limitation makes the television perform better with higher resolution content.

The C69KS handles upscaling quite well. The tested 576p material looks surprisingly decent – a considerable amount of detail is retained, and the algorithm adds a slight "rounding" effect to sharp edges, making the image appear more cohesive. The performance in smoothing tonal transitions is less impressive. The television practically cannot improve them, leaving the image in a rather raw state. With older material, this can be quite tiring, as the lack of additional processing highlights any imperfections.

Although the Samsung DU7192 is the lowest model in the manufacturer's range, it is equipped with motion smoothing technology. While the functionality of this solution is significantly limited compared to more expensive models, its presence alone distinguishes the television amidst competitors in this price bracket. The TV supports a maximum refresh rate of 60 Hz, which is sufficient for comfortable viewing of films and series, but may be inadequate for dynamic content such as sports. In the motion smoothing menu, we can find, among other things, the "Judder Reduction" feature. Unfortunately, its performance leaves much to be desired – regardless of the setting, the picture exhibits the characteristic stutter known from materials recorded at 24 frames per second, making this feature practically ineffective.

C69KS offers a simplified motion enhancement panel in films, allowing the adjustment of effect intensity with a slider. This makes it easy to match fluidity to personal preferences. The ability to use higher refresh rates is also a plus – although the panel operates natively at 4K at 60 Hz, lowering the resolution to 1440p enables 120 and 144 Hz modes, both on consoles and PC. This sounds like great news, however, in practice, the image at these settings exhibits significant motion blur. The effect is so pronounced that the overall presentation appears merely average and loses its appeal for everyday use.

Samsung DU7192 is equipped with HDMI 2.0 ports, which is expected in this price range. This limitation means there is no support for the full capabilities of the latest generation consoles, such as VRR technologies. The television only offers a basic feature for gamers – automatic switching to low latency mode (ALLM), and support for basic HDR for games in the HGiG standard. HGiG allows for the display of HDR content in games according to manufacturers' guidelines; however, the limited brightness of the television does not allow for full enjoyment of the effects that this standard offers. Unfortunately, there is a lack of conveniences such as GameBar, which is increasingly found even in cheaper models and greatly facilitates quick adjustment of settings for games. The presence of this feature could significantly enhance user comfort, especially for those who frequently change display modes.

If we overlook the smudging and lack of native 4K at 120 Hz, the C69KS impresses with how well it performs during gaming. We get everything one can expect from a gaming television: variable refresh rate (VRR), automatic switching to game mode (ALLM), Dolby Vision Gaming mode, and a well-functioning HGiG. The television can also operate at 120 and even 144 Hz at lower resolutions, allowing for smoother gameplay on a console or PC. Additionally, there is a clear Game Bar that lets you quickly glance at key settings while gaming. As a result — despite a few limitations — the C69KS can be a really successful screen for gamers.