TCL C855 vs Philips PML9009 / 9019 / 9059

The TCL C855 delivers a highly varied HDR effect. At times, the television truly excels, while at other moments, it appears reminiscent of a low-end model equipped with FALD backlighting. Inconsistency is frequently found with this brand, so it didn’t come as a surprise. The first and last scenes, which feature large light elements, are nothing short of spectacular, boasting brightness levels of 1470 and 1820 nits, respectively. Such brightness can make viewers squint their eyes, allowing them to feel the extraordinary dynamism of the scene. It genuinely immerses the audience, creating a sensation of being inside the movie itself. However, the situation shifts dramatically when small or subtle elements with high luminance appear against a dark background. In these instances, the TCL C855 significantly reduces brightness to levels as low as 240 nits to mitigate halo effects. This reduction is disappointing, as it can make the movie appear as if it was not filmed in HDR. Despite these shortcomings, the HDR effect on the TCL C855 enhances the viewing experience during dynamic scenes, making it feel more engaging and allowing the viewer to feel part of the action. Even with smaller high-luminance elements, the television retains details without excessive dimming. Additionally, the TCL C855 adjusts image brightness according to scenes with rich detail, further enhancing viewing comfort.

The Philips PML9009 struggles to deliver the highest HDR performance. Scenes with effects around 550 nits don’t provide particularly impressive lighting, though the effects remain stable, an improvement over SDR materials. A notable exception is in Gemini Man, where a flashlight as the sole light source stands out. This is likely due to the absence of large dark areas and the relatively small size of the light source compared to scenes with larger, brighter elements like the sun. While the brightness results in HDR content aren’t quite strong enough to recommend this TV for productions utilising a wide colour gamut, it’s worth mentioning that the model does achieve decent coverage, reaching 93% of the DCI-P3 spectrum.

The best factory mode for the TCL C855 is the "Film" setting, and all our tests were conducted using this mode. However, like many predefined modes, it has flaws that should be addressed to achieve an image closer to the producer's original vision. In our examination of the colour characteristics for both SDR and HDR materials, issues were found.

Focusing first on SDR content, there is a noticeable dominance of green in the white balance, which leads to an unpleasant greenish tint across the entire image. The gamma chart, crucial for image contrast, shows a significant deviation from the reference line marked at 2.4. Initially, there is a pronounced spike in the measured value, resulting in an over-contrasted image where details can merge into a dark blob. This condition persists for nearly 20% of the chart before it dips below the reference line, causing the image to brighten and resulting in a substantial drop in contrast.

In HDR materials, the factory mode performs somewhat better; the white balance appears more balanced overall, although the green tint resurfaces in the latter half of the spectrum. When we look at the Electro-Optical Transfer Function (EOTF) curve—unlike gamma, which reflects contrast—we identify two main errors: the darkest scenes are too dark, while the brightest ones become overexposed. This discrepancy was evident in our review of the scene from the movie "Pan," further illustrating the TCL C855's HDR performance issues.

During testing, the Philips PML9009 performed best in the factory "Filmmaker" mode, which we evaluated across both SDR and HDR content. A key characteristic observed in this mode is the EOTF curve’s behaviour in HDR content and gamma settings in SDR, designed to enhance image accuracy. However, the PML9009 presented noticeable issues, particularly with white balance, as a pronounced red dominance created a yellow tint across the entire image. This affected skin tones and white areas, with faces and whites appearing unnaturally warm. The colour shift was confirmed through the "ColourChecker" palette, where colours leaned towards warmer shades.

In the gamma analysis, responsible for image contrast, we noticed considerable inaccuracies early on. Our measured values spiked above the reference, causing dark scenes to lose detail and merge visually up to about 10% screen brightness. Following this, the values dropped below the target line, further degrading contrast—an area already challenging for this model.

In HDR content, the white balance remained similarly flawed, and the EOTF curve also restricted brightness levels, resulting in a dim, muted image. Colour inaccuracies were even more pronounced here, with lower luminance levels causing large deviations from accurate colours, which were clearly visible on the error graph, often exceeding acceptable limits. While aiming for cinematic quality, this mode ultimately fell short in delivering balanced colour and contrast fidelity.

TCL, like most manufacturers, offers advanced calibration tools within its televisions. These include both 2-point and 20-point adjustments for grayscale, as well as a comprehensive colour management system. As a result, we achieved impressive results in SDR materials, bringing the image significantly closer to the reference standard. We successfully eliminated both the green tint and the gamma issue, although a slight "kink" at the very beginning of the gamma curve still persists.

In contrast, the situation with HDR materials was less favourable, as the TCL C855 did not allow for precise modelling. We were only able to make minor adjustments to the EOTF curve while significantly enhancing the overall colour accuracy. This limitation suggests that while calibration tools are effective, they may require further refinement for optimal HDR performance.

Philips has long provided sophisticated calibration tools, including 2-point and 20-point grayscale adjustments as well as an advanced CMS (Colour Management System). These allow users to make significant improvements, and even those less attentive to image quality will likely notice a positive difference post-calibration. Both SDR and HDR content benefit from this process, notably eliminating the prominent yellow tint caused by an overemphasis on red in the white balance.

For SDR content, although gamma adjustments don’t entirely resolve the loss of detail in dark areas, the overall improvements bring most content to an impressive standard, with minimal, hardly perceptible errors. Colour accuracy is notably enhanced, achieving nearly reference quality with low deltaE errors.

HDR content, however, remains somewhat limited due to the display’s lower brightness capability. While the white balance has largely been corrected, a slight blue tint can occasionally appear. The EOTF curve aligns very well, providing accurate geometry, though colour errors persist due to the limited luminance. This calibration offers a substantial improvement but may still fall short for viewers who expect high brightness levels in HDR.

Once again, we will take a look at the function of smoothing tonal transitions, but this time also image scaling. The latter is particularly important when watching materials of lower quality, such as some television programs or older films. We will focus on the function responsible for tonal transitions. Interestingly, just like in the scenes from the previous test where it performed excellently and smoothed out practically all the inconsistencies, here it had issues. Using the menu responsible for the operation of this function, we found that no setting—even the strongest—was helpful.

Image scaling in TCL C855 is defined as one of the best we have had the opportunity to test so far. The image is sharp, but in a way that could be described as natural to our eye. Even small, fine branches do not have jagged edges, and there is no white halo around figures, a characteristic of weaker scaling systems.

Given the impressive handling of tonal transitions by the Philips PML9009, one might expect similar success in the image scaling test. However, the results were less than stellar. When upscaling lower-quality images, like those from certain TV programmes or older films, the Philips algorithm tended to blur fine details noticeably, especially in intricate elements like fine branches or a model's hair.

On the other hand, the tonal transition performance remains noteworthy, with the TV offering several levels of smoothing. Even at the lowest setting, it effectively addresses non-smooth transitions in most materials, and crucially, it preserves the film grain effect, maintaining fidelity to the director's vision. However, it’s worth noting that some fine details may still appear slightly softened.

The maximum refresh rate you can set on the TCL C855 is 144 Hz. Naturally, this is only possible after connecting the TCL C855 TV to a very powerful PC. Otherwise, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we want to watch primarily sports or materials with a lot of motion dynamics. For those who require high image fluidity, the manufacturer has implemented a multi-stage motion smoother. It is divided into two separate sliders which control the sharpness of moving images (Motion Blur Reduction) and flicker (Flicker Reduction). Both sliders can be adjusted from 0 to 10, with each level affecting the degree of fluidity, so everyone can find their sweet spot. We present a setting that allows for slight smoothing without the soap opera effect. The matrix of the TCL C855 features a very good response time. This is particularly important since VA panels often struggle with the so-called ghosting effect, where a black halo can be observed behind a fast-moving object. where a black halo can be observed behind a fast-moving object.

The Philips PML9009 has a 120 Hz native refresh rate, a baseline standard for watching sports and an ideal setting for gaming on consoles or PCs. Philips includes an effective motion-enhancement system for users who want to reduce the stutter of 24 fps content or need fluid motion for fast-paced scenes, like in football matches. The dedicated "Smoothness" slider effectively mitigates stuttering, while "Motion Blur Reduction" enhances the sharpness of dynamic content. Each setting produces a noticeable difference, so users can tailor the motion effects to their preferences. Our recommended setup achieves a moderate smoothing effect, avoiding the exaggerated “soap opera” appearance.

Regarding pixel response time, VA panels like this generally fall short compared to OLED or even IPS panels, which can lead to a slight "black halo" trailing behind fast-moving objects. Although not a frequent issue with this TV, the effect can be seen in certain scenes.

The TCL C855 TV has fully-featured HDMI 2.1 ports, boasting a full bandwidth of 48 Gb/s. During our testing, we confirmed the seamless operation of all functions included in this connection standard. As highlighted, all checkboxes are illuminated in green, a feature that will undoubtedly be appreciated by gamers, whether on consoles or those using the TV as a computer monitor. Additionally, the TCL C855 supports both AMD FreeSync and NVIDIA's G-Sync, which can be easily activated in the graphics card settings. Those with powerful configurations can feed a 144 Hz signal to the C855, which handles this effortlessly. It is also worth noting the implementation of the HGIG mode, which can be excessively bright due to the shortcomings of the "Game" mode, making proper configuration on the screen challenging. Fortunately, the TV excels with the Dolby Vision format.

TCL, as one of the pioneering manufacturers, has equipped its televisions with a special GameBar, allowing for extensive adjustment of settings "on the fly" without the need to exit the game. This feature includes options like an additional crosshair grid, black level correction, and settings designed for individuals with disabilities. The image showcases the next generation of this solution.

In summary, the TCL C855 TV is an ideal choice for those seeking a screen for all forms of electronic gaming. With comprehensive features supporting such entertainment, it provides an extremely engaging experience. It is also important to emphasise that it maintains very low input lag, regardless of the selected settings, including when using the Dolby Vision HDR format.

The Philips PML9009, with HDMI 2.1 ports supporting full bandwidth, is thoroughly equipped with gamer-focused features. Core functions like Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) are included, as well as the additional perks of G-Sync and FreeSync compatibility and low-lag HDR Dolby Vision support. All these gaming features activate seamlessly, proving this model’s suitability for gaming. The TV’s HGIG mode, particularly beneficial for gaming, adjusts HDR effects to the television’s capabilities to avoid image dimming and blooming, an advantage given the still limited number of games supporting Dolby Vision.

For added convenience, the PML9009 has a GameBar menu, allowing in-game setting adjustments without needing to exit. This menu includes features like a crosshair option and black level correction, which can enhance the visibility of shadowed areas—ideal for competitive play.

Overall, the Philips PML9009 offers a comprehensive setup for gamers, supporting VRR, ALLM, G-Sync, FreeSync, and HDR Dolby Vision to deliver immersive, high-quality gaming experiences across a wide range of titles.