TCL C8L / QM8L vs SONY BRAVIA 3 II (XR35M2)

When it comes to HDR, the TCL C8L turns out to be a hellishly bright television – and I mean that literally. On a synthetic test pattern of 5%, our measuring equipment indicated a result exceeding 4500 nits. That's an almost cosmic result, considering that reference director's monitors, which we often refer to in our materials, usually operate around 4000 nits. Does this mean the C8L breaks barriers and climbs to the technological peak of Mini-LED? Not quite. Dry synthetic tests are one thing, and real film images are another. In real, varied scenes, the C8L hits around 1600 nits at its peak. That's still a very good result, ensuring a very high level of HDR dynamics, but it's clearly lower than what the manufacturer boasts in the specifications. The trouble begins with very small bursts of light – then the brightness can drastically drop to around 600 nits. The algorithm does everything it can to maintain deep blacks and minimise halo effect, but it does so at the cost of HDR impact. This is ideal evidence that laboratory test patterns rarely correlate with what we ultimately see on the screen.

Huge applause is due for colour 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 jaw-dropping measurements come from the notoriously demanding BT.2020 space. The C8L achieves an impressive 90% in this area, placing it alongside today’s top screens that feature RGB backlighting. Importantly, unlike some screens with Micro/Mini RGB backlighting, this effect is stable regardless of the scene being displayed. Of course, it’s important to remember that content mastered for such a wide gamut in films or series is still a rarity. However, the very fact that the panel has such a "reserve of colours" deserves huge admiration.

The Bravia 3 II isn't exactly a TV that tries to impress with brightness. In our measurements it reached around 450 nits, so it's well short of the brightest models on the market. That doesn't mean HDR is just a paper feature here. Compared with standard SDR material, the brightest parts of the image can already punch through noticeably, and highlights, light sources and stronger exposures have a bit more energy and stand out better from the rest of the scene. You can see this best in simpler shots where the screen contains lots of bright elements. Then the Bravia 3 II can give a taste of a higher-dynamic-range picture. The problem only starts with more demanding content, where much greater brightness headroom is needed. There the TV quickly shows its limits and instead of bold, spectacular HDR we’re left with a merely competent picture.

Colours

The Bravia 3 II uses a QLED panel, although technically it doesn't employ a traditional quantum-dot layer. Instead Sony has used a PFS phosphor-based solution, which performs a very similar role: it allows for more saturated reds and greens, and thus reproduces a much wider colour gamut. In our measurements coverage of the DCI-P3 gamut was about 94%, and of the very wide BT.2020 around 74.4%. Those are good results for this class of hardware, which means the Bravia 3 II has no problem showing suitably saturated colours in HDR material. Colours don't look washed out, and the more intense hues can look really attractive.

We tested the TCL C8L in the best factory mode available in the TV's menu for picture fidelity. I’m of course talking about Filmmaker Mode, which was introduced into this brand’s software relatively recently (a year ago in the K series). Thanks to it, the average user can get pretty good colour reproduction straight out of the box, although it’s certainly not perfectly tuned. Looking at the factory white balance of our unit, in both SDR and HDR content, there was a clear lack of the red component, which made the picture noticeably cooler and slightly shifted towards bluish‑green hues. The issue of brightness management is also ambiguous, as we mentioned earlier. While in SDR content the linearity of the gamma parameter is really good and consistently holds the reference value of 2.4, things are much worse in HDR. Tracking the EOTF curve clearly shows the TV’s brightness is considerably boosted across the range, which can make the final image overly bright and inconsistent with the creators’ intent, and that is in a mode that by definition should avoid this. Of course, like every unit in our lab, this one was also subjected to professional calibration, and you can find the results below.

In Professional mode the Bravia 3 II delivers a fairly good level of colour reproduction straight out of the box. In SDR the most noticeable issue is a slightly low gamma, which makes the midtones a little brighter. The white balance isn't perfect either; as brightness increases a bit of blue and red drops away, so whites can sometimes appear a touch warmer with a faint greenish tint. These aren't mistakes that immediately jump out when watching a film. Average error values hover around 3, so the factory setup can be considered quite good. The situation in HDR is similar. Here too there's a slight lack of blue, so the picture is marginally warmer than the reference, but the difference isn't large enough to be distracting during normal viewing.

As you can see, the results of a professional calibration of the TCL C8L are genuinely promising, thanks to the extensive adjustment tools the manufacturer made available in the menu. Most importantly, we were able to fully correct the white balance, eliminating a lack of red so the image finally stopped drifting into unwanted, cool tones. After this step, errors in the ColorChecker test fell to near-reference values, regularly sitting below a Delta E threshold of 2, which is under the level noticeable to the human eye.

Since the test patterns look so 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 real film material (I recommend turning the EOTF filter on when watching films), it becomes clear that the TV in most scenarios still responds to HDR metadata in its own way. As a result, the image can be a touch too bright and not in line with the creators' intent, and it was precisely for this lack of repeatability with real-world films that we had to dock the C8L a few points.

After calibration you can get a lot out of SDR material. The white balance was set almost perfectly, gamma practically matches the reference value, and average colour errors fell from around 3 to about 1. That’s already the level at which differences from the reference image are very hard to spot in practice. The Bravia 3 II therefore shows that despite its place in Sony’s range it has quite a bit of potential for precise picture tuning. Improvement is also visible in HDR, although here you can’t avoid all the limitations of the TV itself. Once the colours are evened out it’s easier to notice that the EOTF curve in film material runs slightly below the reference value in places, meaning the Bravia 3 II gently darkens parts of the image. That isn’t ideal from a reference point of view, but in this particular TV it also has an advantage. With no local dimming and average black levels this behaviour slightly reduces the visibility of the backlight in darker scenes and helps preserve a stronger sense of contrast. You could say Sony is partly masking the limitations of the panel this way, rather than trying at all costs to stick to the reference brightness.

This year the C8 series and the higher-end models have probably received the biggest and most eagerly awaited upgrade in TCL's history, and it's to do with digital image processing. The C8L is the entry-level model in the manufacturer's line-up to be fitted with the latest flagship MediaTek Pentonic 800 chipset (shown in the menu as MT9655). It is thanks to its processing power that the feature called "Gradual Smoothing" finally works the way it should. The algorithm effectively removes unwanted posterization (ugly tonal transitions / colour banding) from the picture, 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 judging this element can be purely academic, because the differences between today's TVs in this class are very subtle. The most important point is that TCL finally has nothing to be ashamed of compared with the competition.

Bravia 3 II is Sony's first TV to use the new MediaTek Pentonic 800 chip, and you can see a few changes in the image processing. Starting with the basics: the upscaling itself is decent. The TV can sensibly upscale lower-resolution material and doesn't have a strong tendency to over‑emphasise jagged edges or other source imperfections. With regular broadcast TV or lower-quality streaming material the picture therefore remains quite attractive.

We have more reservations about the digital image processing. In this model Sony has replaced the well-known "Smooth Gradation" function with a new setting called "Digital Noise Reduction". Its job is basically the same: to smooth out ugly tonal transitions and artifacts caused by heavy compression. Unfortunately, this function performs noticeably worse than before. At the "Large" setting (the only one that had any visible effect) the TV can smooth away too many image elements at once, which causes film grain to disappear and object textures or even skin to start looking unnatural. Worse still, the effect is not particularly stable. When there's more motion in a scene, the function's effect noticeably weakens and at times it looks as if the TV stops intervening in the image altogether. So for everyday viewing we wouldn't recommend using it at a high level. It can help on static shots, but the trade-off is often too much loss of detail.

The TCL C8L is equipped with a fast panel with a native 144 Hz refresh rate. That spec will be most appreciated by demanding PC gamers, while most users, relying on consoles or TV broadcasts, will use a steady 120 Hz. And it is at 120 Hz that the motion-processing algorithms take care of image processing for films, series and sports. In the TV's menu you'll find a "Motion Clarity" option that lets you customise the motion smoothing to your preferences. The algorithms handle both cinematic productions at 24 or 30 frames per second and fast-paced sports broadcasts at 50 or 60 frames per second, maintaining the right level of smoothness.

Motion handling is definitely one of the Bravia 3 II's strongest points. The TV uses a 120 Hz VA panel, a solution that by nature, despite the high refresh rate, doesn't always cope well with motion blur. Sony has, however, managed that issue very well here. Fast-moving objects remain sharp, and the characteristic motion trails and blur are reduced to a very low level, if not to zero. It's one of the least motion-blur-prone LCD TVs we've had the chance to test. Interestingly, in this respect the Bravia 3 II can even outperform the much more expensive flagship True RGB series, the Bravia 9 II.

For gamers – especially for owners of powerful PCs and multiple consoles simultaneously – the TCL C8L is a true beast. This is the first model in this manufacturer's lineup that is equipped with four full HDMI 2.1 ports with a maximum bandwidth of 48 Gbps. This is directly due to the use of the new Pentonic 800 processor, which we've mentioned before. Additionally, the TV seamlessly supports practically every gaming feature. It has an automatic game mode (ALLM) that reduces latency to minimal levels, as well as full variable refresh rate (VRR) operating in an impressive range of up to 288 Hz. It also supports standards such as G-Sync and FreeSync from Nvidia and AMD. When it comes to image display standards, there are no compromises either: the C8L offers complete support for HDR formats in gaming, including gaming Dolby Vision and the HGiG profile. We can conveniently manage all these features from a very readable gamer bar (Game Bar), which we can customise according to our own preferences. From a purely gaming perspective, the C8L really has no flaws – well, maybe apart from the previously mentioned slight ghosting. But other than that? It’s a no-nonsense machine for gamers.

The Sony Bravia 3 II is a very good TV for gamers, although not everything has been solved the way we’d like. The biggest change concerns the connectors. For the first time in a Sony TV we get four full HDMI 2.1 ports with 48 Gb/s bandwidth, thanks to the new MediaTek Pentonic 800 chipset. That removes one of the problems that has hung over this manufacturer’s TVs for years. You can connect several devices at once and on each input use the device’s full capabilities, including VRR and ALLM. There’s also a simple Game Bar that lets you check the key signal parameters and change a few useful settings, such as black level, when you want to improve visibility in darker parts of a game.

There are, however, two limitations worth knowing. The first is the lack of support for 1440p at 120 Hz. That won’t be an issue for everyone, but people using that resolution on a console or PC—for example to get higher frame rates in certain games—will have to choose 1080p. We have more reservations about HGiG support. Sony doesn’t let you disable tone mapping on the Bravia 3 II, so the TV keeps processing HDR even when you’d prefer to leave that task to the console. It’s easiest to spot during HDR setup—the checkerboard test pattern doesn’t disappear at the point where it should based on the TV’s actual capabilities. That doesn’t mean HDR in games will look bad. You just need to set up a little differently and, rather than relying on the pattern, manually set the peak brightness to about 450 nits. So the issue can be worked around, but you should know about it before you start configuring your console.