Philips MLED920 / MLED910 vs TCL C6KS / C69KS / Q6CS

Philips MLED920 in our measurements in static tests even reached around 900 nits, which for a mid-range model is quite an impressive result. In practice, this translates to a lot of satisfaction during viewing – in scenes rich in bright light, such as the first, third, or fifth test patterns, the screen was able to generate around 700 nits, which is sufficient to feel the real "HDR effect". However, it cannot be denied that the limited number of backlight zones and the typical mini-LED compromises in dimming algorithms reveal their flaws in more demanding scenes. In sequences with small light sources – like the moon or a scene from the film Sicario 2 – the television clearly prioritises maintaining deeper blacks at the expense of the brightness of these small elements. For most viewers, this is still a reasonable compromise, as the dark background looks much better, although it should be noted that the details themselves may not dazzle with intensity. The question of colours also leaves a bit to be desired. Although the employed PFS filter (the equivalent of quantum dots known from QLEDs) does its job and the colours appear quite vibrant, the coverage of the DCI-P3 colour space reaches "only" 90%. In everyday viewing, this will be sufficient, but in extremely colourful productions – like the latest Disney animations – one can notice that some tones are not as vivid as they could be in other constructions.

And what about HDR? Here the C6KS performs quite well and – as is becoming the theme of this review – just like in 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, video materials look good here. However, it's important to keep in mind the specifics of the dimming algorithm in this model. When very small, bright points (e.g. stars) appear on a dark background, the television can quite significantly dim them. The goal is simple: to eliminate blooming and maintain the best possible black. It's a reasonable compromise. Most viewers will definitely appreciate deep, “true black” more than additional microscopic details, the display of which could cause the screen to appear greyed out. Such is the nature of local dimming technology in this price range, and one must be aware of this. It’s also worth noting that the TCL C69KS (C6KS) has an additional PFS coating, which is marketed under the QLED technology slogan. 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%.

Like every Philips TV we've tested, the MLED920 was primarily assessed in Filmmaker mode – the so-called "most honest" mode, designed for films and to faithfully convey the intentions of the creators. Indeed, in terms of colour accuracy, it performs best among all the modes available on the TV, but it is not without flaws. The first thing that stands out is the white balance. The image has a slight tendency towards purple-pink tones, giving it a somewhat unnatural character. However, an even bigger problem turned out to be what we mentioned earlier – image clipping. Just looking at the gamma or EOTF charts reveals that the line deviates significantly from the norm, dropping below a value of 1.8. In practice, this means "bleeding" of the brightest whites, where the image becomes almost milky. Fortunately, most of these issues can be corrected – the MLED920 responds to calibration, and with a few adjustments, image quality can be significantly improved.

In contrast to the more expensive C6K model, in the tested C6KS we don't find an option in the menu labelled as Filmmaker Mode. Is this a reason to cry? Absolutely not. Our tests showed 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 profile 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 would give you better colours – the answer is: no, in both cases the base is the same and requires slight adjustments.

After calibration, we managed to largely tame the white balance – to the extent that the average viewer will not be able to detect colour inaccuracies. The characteristic pink-purple glow that previously disrupted the naturalness of the image has also disappeared. The colour palette has been organised, and the colours appear more cohesive and neutral. The gamma in SDR content looks really good after calibration – there’s no sign of the earlier “bleeding” effect in bright scenes. The image has become more contrasty and free from the milky effect that previously severely affected the viewing experience. In the case of HDR content, the improvement is also noticeable, although here it is still evident that the television goes “its own way”. The EOTF curve cannot be fully adjusted, as Philips simply does not offer tools for precise control of this parameter in its settings. In many films, the television still exposes the image “in its own way”. Despite these limitations, calibration has brought a lot of good – the majority of colour inaccuracies have been minimised and the overall image balance has significantly improved. However, one must remember that certain barriers arise from the very hardware construction and simply cannot be overcome.

Thanks to the white balance adjustment, the C69KS's tendency to distort colours has been effectively limited, leading to a very good final effect. After calibration, we will no longer see excessive warmth in SDR scenes or overly cool tones in HDR. However, it is worth noting the brightness characteristic. In SDR content, there are hardly any objections – the image looks very good, especially in older films, TV shows, or YouTube materials. Evaluating the television's performance in HDR is much more difficult. Analysis of the EOTF curve suggests correct behaviour, but its practical variant shows certain limitations. The C69KS can overly brighten the smallest elements of the frame, while at other times it can dim the entire scene. Calibration has therefore brought clear benefits in terms of colour, but certain limitations resulting from local dimming and the way it is controlled by the C69KS cannot be avoided, which we also observed in the C6K test.

The manufacturer has equipped this model with several features that improve signal quality, and although we usually approach such “enhancers” with caution, here they prove to be really helpful. The key option is called “distortion reduction” – it works best at a medium level because, on one hand, it effectively smooths out unwanted steps and colour transitions, and on the other, it doesn’t excessively cut details, meaning the image still looks natural.

It’s a bit worse when it comes to upscaling. Lower quality materials – such as the test video with the model – appeared soft and lacking sharpness. Of course, it can be partially adjusted with the sharpness slider in the menu, but the result still falls short compared to what competitors offer at a similar price. Philips still needs to work on this aspect because, in light of the successful improvement of tonal transitions, the upscaling simply comes off weak.

The C69KS handles upscaling quite well. The tested 576p content looks surprisingly decent – a considerable amount of detail is preserved, and the algorithm adds a subtle ‘rounding’ effect to sharp edges, making the image appear more cohesive. However, it doesn't perform as well when it comes to smoothing tonal transitions. The television practically cannot improve them, leaving the image in a rather raw state. With older materials, this can be simply exhausting, as the lack of additional processing highlights all imperfections.

Philips MLED920 features a 144 Hz panel, which immediately suggests that we shouldn’t complain about motion smoothness. And indeed – for a VA panel, the motion blur is relatively low here, and while you can sometimes notice slight issues on darker backgrounds, they’re not something that will catch the eye of most people during regular viewing.

A big plus is also the presence of a motion smoother called “Motion Style.” It allows you to adjust the smoothness to your own preferences – if someone prefers a more “theatrical,” almost television-like character of the image, they can increase the sliders, and if they want to maintain the natural “judders” of a cinematic frame, they just need to set lower values. This way, everyone can find a happy medium.

C69KS offers a simplified motion enhancement panel in movies, allowing users to adjust the intensity of the effect using a slider. This makes it easy to tailor the smoothness to personal preferences. It also deserves credit for the ability to utilise higher refresh rates – even though the panel operates natively in 4K at 60 Hz, by lowering the resolution to 1440p, modes of 120 and 144 Hz can be enabled, on both consoles and PC. This sounds like great news, however, in practice, the image at these settings trails exceptionally badly. The effect is so pronounced that the overall experience simply appears mediocre and loses its appeal in everyday use.

For gamers, the Philips MLED920 is truly a complete tool. The manufacturer has taken care of everything that is now considered standard in televisions for consoles and PCs. It has ALLM, so the console automatically switches the screen to game mode, there’s VRR and a 144 Hz refresh rate that ensures smooth gameplay even in fast-paced titles. All key HDR formats are supported – including HGiG and Dolby Vision Gaming for Xbox – which means that regardless of what you’re playing and on which console, the television will be able to extract the maximum potential from the image. In everyday gaming, the Game Bar proves useful too – a relatively simple implementation by Philips, but a functional panel where you can quickly check image parameters, enable VRR, or adjust details without leaving the game. It’s not as elaborate as the competition, but it does its job without any complaints. And finally, something that sets Philips apart from the competition – Ambilight. The three-sided LED backlighting can make a huge impression in games, especially in the evening. It’s also a way to slightly 'expand' the screen and create a greater sense of immersion. And since coloured LEDs have recently become almost an essential element of a gamer’s room, the MLED920 fits perfectly into this trend.

If we overlook the smudging and lack of native 4K at 120 Hz, the C69KS is impressive in how well it performs for gaming. You get everything you would expect from a gaming TV: Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Dolby Vision Gaming mode, and a consistently functioning HGiG. The TV can also operate at 120 or even 144 Hz at lower resolutions, making gameplay on console or PC smoother. Additionally, there's a clear Game Bar that allows you to quickly check key settings while gaming. As a result — despite a few limitations — the C69KS can be a genuinely successful screen for gamers.