LG QNED93A / QNED90A vs TCL C8L / QM8L

Although the number of local dimming zones in the LG QNED93A did not directly translate to a noticeably better contrast, one cannot deny that this model is brighter than its predecessor. In synthetic tests, we recorded values around 1400-1500 nits, and more importantly, these results are reflected in real movie scenes. In full-screen sequences flooded with white or bright lights, the screen was able to maintain high luminance, which produced a truly decent incredible HDR effect. Unfortunately, where the television could show its true class, namely in scenes that require precision, all the magic evaporates. The dimming algorithms we mentioned earlier are aggressive enough that small bright objects—such as distant lights, stars, or the moon—can almost completely disappear. Just look at the test scenes from the movie Pan or Sicario 2 (screens 2 and 4) to see how subtle details are dimmed to the brink of visibility. It's a shame, because a greater number of zones could theoretically lead to significantly better results. Fortunately, there are also stronger points. The QNED93A performs well in terms of color gamut coverage, achieving around 96% of the DCI-P3 standard. As a result, colors in movies look vivid and full, and the picture does not lose intensity even in more demanding scenes. So it can be said that the HDR in this model is solid, although the unfinished local dimming algorithms hinder its full potential.

In terms of HDR, the TCL C8L turns out to be a hellishly bright television – and I mean literally. On a synthetic chart of 5%, our measuring equipment indicated a result exceeding 4500 nits. This is a result that is downright cosmic, considering that reference director monitors, which we often refer to in our materials, typically operate around 4000 nits. Does this mean that the C8L breaks barriers and climbs to the technological peak of Mini-LED? Not exactly. Dry synthetic tests are one thing, and real movie images are another. In real, varied scenes, the C8L achieves a peak of around 1600 nits. This is still a very good result, ensuring a very high level of HDR dynamics, but also clearly lower than what the manufacturer boasts in the specifications. The trouble starts with very small flashes of light – then brightness can drastically drop to around 600 nits. The algorithm tries at all costs to maintain deep black and minimize halo effect, but it does so at the expense of HDR impact. This is perfect evidence that laboratory charts rarely correspond to what we ultimately see on the screen.

Huge applause is due for color reproduction, all thanks to the new generation of SQD (Super Quantum Dot) quantum dots. The coverage of the DCI-P3 palette reaches 97%, but the true jaw-dropper is the measurement of the extremely demanding BT.2020 space. The C8L achieves as much as 90% in it, placing it alongside today's top screens that boast RGB backlighting. Importantly, unlike some screens with Micro/Mini RGB backlighting, this effect is stable regardless of the scene displayed. Of course, one must remember that content mastered for such a wide gamut in films or series is still a rarity. However, the mere fact that the panel has such a "color reserve" deserves immense admiration.

In movie mode (specifically Filmmaker), color reproduction on the QNED93A was relatively accurate, although it wasn't without critiques. In SDR content, white balance leaned towards warmer tones, resulting in a slight yellowing across the entire screen. Gamma, on the other hand, led to a slight brightening of the image, making it look a bit less natural, especially in scenes requiring precise shading (this is evident in the comparison picture). This isn't a problem that immediately stands out to every viewer, but more discerning individuals may feel that the picture deviates from the aesthetic intended by the filmmakers. In HDR materials, the situation looked somewhat different. The white balance presented itself quite well here, ensuring that whites didn't lean towards pink or unwanted shades of green. However, brightness management proved to be an issue. Analysis of the EOTF curve revealed that at certain moments the television can be noticeably too dark where it shouldn't be, losing some detail and reducing the realism of scenes. This detracted from the experience of HDR effects, which were theoretically supposed to be the most impressive. For this reason, we decided to carry out calibration.

We tested the TCL C8L in the best factory picture mode available in this TV’s menu for image fidelity. That, of course, is Filmmaker Mode, which appeared in this brand’s software relatively recently (a year ago in the "K" series). Thanks to it, an average user can get a pretty good color reproduction straight out of the box, although it is certainly not a perfectly tuned mode. Looking at the factory white balance of our unit, both in SDR and HDR material, the red component was clearly lacking, which made the image noticeably cooler and caused a slight shift toward bluish-green tints. The issue of brightness management is also ambiguous, as we mentioned earlier. While for SDR content the gamma linearity is actually correct and holds steadily at the reference value of 2.4, in HDR things look much worse. Tracking the EOTF curve clearly shows the TV has a significantly boosted brightness across the range, which can make the final image overly bright and inconsistent with the creators’ intent, and that in a mode that by definition should avoid that. Of course, like every sample in our lab, this one also underwent professional calibration, and its results are shown below.

After professional calibration, the Filmmaker mode on the QNED93A gained the most where it matters most in everyday use. It was possible to adjust the white balance and eliminate the yellowish tint in SDR content, which we watch most often – television, streaming services, or standard quality films. This makes colors look natural and pleasant, and the overall experience is much more comfortable. In HDR mode, we also made adjustments, but the biggest problem here turned out to be the EOTF curve. Although LG provides some leeway in the settings, the television still manages brightness on its own terms. It is evident that the local dimming algorithms are not entirely refined and can spoil the viewing experience by dimming parts of the image at inappropriate moments. Nonetheless, it is worth opting for calibration of this model, especially the mode intended for daily viewing.

As you can see, the results of a professional calibration of the TCL C8L are really promising, thanks to the extensive adjustment tools the manufacturer put at our disposal in the menu. Above all, we were able to completely correct the white balance — we eliminated the red deficiency, so the image finally stopped drifting toward unwanted cool tones. After that adjustment, errors in the ColorChecker test fell to near-reference levels, regularly landing below a Delta E of 2, which is below the threshold of human perception.

If the test patterns look this perfect, you might ask: why then the lower final score in this category? The answer lies in the brightness management discussed earlier. Although the menu includes sliders that let you precisely straighten the EOTF curve on synthetic signals, when confronted with actual movie material (I recommend enabling the EOTF filter when watching movies), you can see that in most scenarios the TV still reacts to HDR metadata its own way. As a result, the picture can be slightly over-brightened and not faithful to the creators' intent, and it was precisely this lack of consistency with real films that cost the C8L a few points.

LG QNED93A proves to be a very solid television for everyday use. Its image processor handles scaling excellently, ensuring that even older movies or terrestrial television gain sharpness and detail. During the screening of "The Godfather," it's clearly visible how upscaling pulls extra details from the image – the characters' faces and the texture of the clothing appear much clearer than in the original material.

The digital image processing also deserves praise. The television is equipped with a function for reducing unwanted color banding and screen irregularities. It works best in the "Medium" setting – subtly smoothing tonal transitions without over-interfering with the image. This way, the natural film grain is preserved, and the screen doesn't appear unnaturally smoothed. Perhaps in some scenes, you can still notice slight color banding, but in practice, the effect is more favorable than with a stronger intervention from the algorithm.

This year the C8 series and higher models received probably the biggest and most anticipated upgrade in TCL’s history, and it specifically concerns digital image processing. The C8L is the lowest-end model in the manufacturer's lineup to be equipped with the latest flagship chip, the MediaTek Pentonic 800 (listed in the menu as MT9655). Thanks to its processing power, the feature called "Gradual Smoothing" finally works as it should. The algorithm effectively eliminates unwanted posterization (ugly tonal transitions/color banding), doing so intelligently enough that it does not degrade the sharpness of other details.

The processor also handles upscaling lower-resolution content to 4K very well. Although evaluating this element can be mostly academic, because the differences between today's TVs in this class are very subtle. The most important takeaway is that TCL finally has nothing to be ashamed of compared to the competition.

LG QNED93A is equipped with a 144 Hz panel. This is primarily a nod to gamers, but the fact that higher refresh rates are increasingly making their way into televisions can be seen as a positive development. In everyday viewing, 120 Hz remains key, and in this regard, the QNED93A performs well. The manufacturer also provides the option to adjust the image through the TruMotion system – the De-Judder and De-Blur sliders allow you to choose between a cinematic motion character with visible frames and a fully smoothed theatrical motion.

The TCL C8L is equipped with a fast panel that has a native 144 Hz refresh rate. That spec will be most appreciated by demanding PC gamers, while most users, who rely on consoles or TV broadcasts, will use a steady 120 Hz. It is at 120 Hz that motion processing algorithms handle image rendering for movies, series, and sports. In the TV’s menu you’ll find a "Motion Clarity" option that lets you adjust the motion smoothing to your preferences. The algorithms handle cinematic material at 24 or 30 frames per second (fps) as well as dynamic sports broadcasts at 50 or 60 fps, maintaining appropriate smoothness.

LG QNED93A is a television that has undoubtedly been designed with gamers in mind. Right from the start, we get a complete package – all four HDMI ports operate at standard 2.1, so whether we connect a console, PC, or receiver, we can be sure of full compatibility. This is important because many manufacturers still limit themselves to two ports, and here nothing prevents all equipment from having maximum capabilities. There’s also an automatic game mode (ALLM), which switches the television to the appropriate settings when the console starts up, as well as variable refresh rate (VRR). This ensures that the image does not stutter or tear, even when the frame rate drops – whether in dynamic shooters or during races.

The 144 Hz panel gives an additional advantage in computer games. While 120 Hz is sufficient for consoles, in the case of PCs, the QNED93A allows for even more – every movement, every glance to the side is refreshed faster, which makes a difference especially in e-sports. The manufacturer also considered HDR in games – the television supports the HGiG mode, which provides guidelines to ensure that the lighting effects are exactly as intended by the game developers. For dessert, we get Game Bar – a special informational strip invoked on the screen that shows parameters in real-time. You can check the frame rate, active VRR functions, or input lag levels. This solution is useful not only for settings enthusiasts, but for anyone who wants to quickly verify what mode the television is operating in and whether everything is working as it should.

For gamers – especially for those with powerful PCs and several consoles at the same time – the TCL C8L is a true beast. It’s the first model in the manufacturer’s lineup equipped with four full HDMI 2.1 ports with a maximum bandwidth of 48 Gbps. This is directly thanks to the new Pentonic 800 processor we wrote about earlier. Additionally, the TV seamlessly supports virtually every gaming feature. It has an automatic game mode (ALLM) that reduces latency to minimal levels and full frame synchronization (VRR) operating in an impressive range of up to 288 Hz. We’re also talking about standards like G-Sync or FreeSync from Nvidia and AMD. When it comes to image display standards, there are also no compromises: the C8L offers complete support for HDR formats in games, including gaming Dolby Vision and the HGiG profile. All of these features can be conveniently managed from a very readable game bar (Game Bar), which we can customize according to our preferences. From a purely gaming perspective, there really isn’t anything to complain about in the C8L – well, maybe aside from the previously mentioned slight ghosting. But other than that? It’s an unflawed machine for gamers.