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

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.

Bravia 3 II is certainly not a TV that tries to impress with brightness. In our measurements it reached about 450 nits, so it's far from the strongest designs on the market. That said, HDR here is not just a paper feature. Compared with regular SDR material, the brightest parts of the image can already punch through, and reflections, highlights, or 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 many bright elements appear on screen. Then the Bravia 3 II can give a hint 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 strong, striking HDR we get only a correctly rendered picture.

Colors

Bravia 3 II uses a QLED-type panel, although technically it does not use a traditional quantum-dot layer. Instead Sony applied a PFS phosphor-based solution that serves a very similar role: it allows for more saturated reds and greens and thus lets the TV display a much wider color gamut. Measurements showed about 94% coverage of the DCI-P3 gamut and about 74.4% of the very wide BT.2020. Those are good results for this class of hardware, meaning the Bravia 3 II has no problem showing adequately saturated colors in HDR content. Colors don't look washed out, and the more intense shades can look really attractive.

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.

In Professional mode the Bravia 3 II, straight out of the box, delivers a fairly good level of color reproduction. In SDR the most noticeable issue is a slightly low gamma, which makes the midtone areas a bit brighter. White balance is not perfect either; as brightness increases there is a slight lack of blue and red, so whites can sometimes take on a slightly warmer, mildly greenish tint. However, these are not errors that immediately stand out while watching a movie. Average error values hover around 3, so the factory preset can be considered quite good. The situation is similar in HDR. Here again there is a slight deficiency in the blue component, so the image is a touch warmer than the reference, but the difference is not large enough to be significantly distracting during normal 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.

After calibration you can get a lot out of SDR content. The white balance was set almost perfectly, gamma practically matches the reference value, and average color errors fell from around 3 to about 1. That's a level at which differences from the reference image are, in practice, very hard to detect. The Bravia 3 II therefore shows that despite its position in Sony's lineup it has quite a lot of potential for precise picture tuning. Improvements are also visible in HDR, although here you can no longer work around all of the TV's limitations. After equalizing the colors 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 slightly darkens part of the image. That's not ideal from a reference standpoint, but in this particular TV it also has an advantage. With no local dimming and average black levels, this behavior slightly reduces the visibility of the backlight in darker scenes and helps maintain a greater sense of contrast. So you could say Sony partially masks the limits of the panel that way, rather than trying at all costs to stick to the reference luminance.

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.

The Bravia 3 II is Sony’s first TV to use the new MediaTek Pentonic 800 chipset, and you can see a few changes in image processing. Starting with the basics: upscaling is solid. The TV can sensibly upscale lower-resolution material and doesn’t have a strong tendency to overemphasize jagged edges or other source imperfections. With regular broadcast TV or lower-quality streaming the picture remains quite pleasing. We have more reservations about the digital image processing. In this model Sony replaced the well-known "Smooth Gradation" feature with a new setting called "Digital Noise Reduction." Its role is essentially the same: to smooth unpleasant tonal transitions and artifacts caused by heavy compression. Unfortunately, this feature performs noticeably worse than before. At the "Large" setting — the only one that noticeably affected the picture — the TV can smooth away too many image elements at once, causing film grain to disappear and surface textures or even character skin to start looking unnatural. Worse, the effect is not very consistent. When a scene contains more motion the function’s effect weakens significantly and at times it looks as if the TV stops intervening in the image altogether. For everyday viewing we therefore don’t recommend using it at a high level. It can help on a static shot, but the price is often too much loss of detail.

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.

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. Here Sony has managed to get that problem very well under control. Fast-moving objects remain sharp, and the characteristic trails and blurring are reduced to a very low level, if not to zero. It's one of the least smearing 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 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.

Sony Bravia 3 II is a very good TV for gamers, although not everything has been handled the way we'd like. The biggest change concerns the connections. 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 long-standing issues that has plagued the manufacturer's TVs. You can connect several devices at once and use each input's full capabilities, including VRR and ALLM. There's also a simple Game Bar that lets you check 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. This won't be a problem 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 does not allow disabling tone mapping on the Bravia 3 II, so the TV continuously processes HDR content even when you would prefer to leave that task to the console. You can most easily notice this during HDR setup. The checkerboard pattern does not disappear at the point corresponding to the TV's actual capabilities. That doesn't mean HDR in games will look bad. You just need to approach the setup a bit differently and, instead of relying on the pattern, manually set the peak brightness to about 450 nits. The issue can be worked around, but you should know about it before you start configuring your console.