Sharp FQ8 vs TCL C655 / C69B (55"-85")

The Sharp FQ8 achieves a maximum brightness of over 450 nits, which is commendable for its price range. While this level might not be groundbreaking, it places the television among the better-performing models in its class. At this brightness, the image appears vivid and detailed, and the HDR metadata functions effectively, offering a more immersive viewing experience compared to dimmer devices.

The television supports the advanced Dolby Vision HDR format, enhancing the depth and richness of the content. It also includes Dolby Vision IQ, which adjusts the image's brightness and colours based on ambient lighting. However, the implementation of this feature on the Sharp FQ8 is suboptimal, introducing artificial brightening and noticeable distortions. For this reason, it is advisable to disable Dolby Vision IQ for the most accurate picture quality.

With quantum dot technology, the television achieves a colour gamut coverage of approximately 94%, resulting in vibrant and realistic colours. This combination of features ensures the Sharp FQ8 delivers an engaging and detailed visual experience, even with some limitations.

Overall, the quality of the HDR effect in TCL C655 / C69B looks quite promising. The average value in the test patterns is around 450 nits, which already allows you to feel the light effects and better image dynamics. However, as mentioned earlier, this effect may be somewhat subdued by slight differences in bright and dark shades, resulting from the lack of local dimming technology. However, the DCI-P3 colour gamut coverage of 94% deserves high praise, and this is possible due to the use of a quantum dot (QLED) panel. This makes the colours vibrant and well-reproduced when watching HDR content.

The Sharp FQ8 was evaluated for colour reproduction in its movie mode, which provides the best default settings for achieving realistic visuals. While it performs adequately, certain issues impact the overall image quality. Tests on HD content revealed significant white balance problems, with a marked dominance of red. This is evident in the colour graph, where the red line noticeably rises above the others, and in practical tests, such as a movie scene featuring a child, where the image appears overly warm and unnaturally red. Similar issues persist with 4K HDR content, where an excessive red tint detracts from the accuracy of colour reproduction, an important consideration for viewers prioritising faithful visuals.

For SDR contrast, the gamma graph displayed an unusual anomaly at the start, highlighting reproduction issues. The remainder of the gamma curve lies below the reference line, indicating suboptimal brightness and contrast levels for standard content. In 4K HDR, the EOTF curve also deviates significantly, suggesting inconsistencies in brightness reproduction. These fluctuations can result in less enjoyable viewing experiences for HDR content, particularly in scenes requiring precise light and dark balance.

The TCL C655 / C69B television offers a film mode that has been tested for colour reproduction quality. Although this mode is called film mode, it unfortunately has quite a few errors that the director would certainly not want to see when filming their work. Starting with image analysis, it's worth looking at the white balance – both in HD content and 4K HDR, the white balance has significant issues. In both cases, the red colour dominates, resulting in colours that are too warm, with an overall pink or yellow tint. This can be seen in the image below from the film "Star Wars." The Colour Checker test confirms these errors – the colour samples stray into incorrect shades, affecting the overall colour fidelity. The brightness characteristics are a lesser issue. However, they are not without flaws either. The gamma chart shows a strong spike at the beginning, which can cause the image to be overly bright, and the EOTF curve responsible for brightness in 4K HDR content also has significant fluctuations – it's evident how the television tries to maintain appropriate brightness, but it doesn't always succeed effectively.

After calibration, the Sharp FQ8 shows notable improvements in its performance for SDR content. The white balance has been significantly refined, with all lines approaching the reference line. While the lines are not perfectly straight, the results are impressive for a TV in this price range. This adjustment enhances the naturalness and accuracy of colours, contributing to a more enjoyable visual experience. However, the gamma chart still displays the peculiar jump at the start, though the remaining line now aligns much closer to the expected outcome.

For HDR content, the white balance also sees meaningful improvements compared to the pre-calibration state, although it doesn’t perform as well as in SDR mode. This refinement results in more consistent and visually appealing colours, despite some remaining imperfections. On the downside, the EOTF chart reveals limited progress in contrast due to the lack of control over dynamic tone mapping settings, which hampers uniform brightness representation in HDR.

Despite these limitations, the calibration significantly elevates the Sharp FQ8, particularly in SDR mode. The improved white balance and colour reproduction deliver a more natural and pleasant viewing experience. While HDR content still leaves room for improvement, the TV achieves a respectable level of performance, solidifying its position as a strong contender in its price range.

After calibrating the movie mode of the television TCL C655 / C69B , the white balance has been adjusted, and the colours look as they should – which is confirmed by only slight deviations in the Colour Checker test. The gamma is really good, which ensures that the television shouldn't have any issues with brightness in low-resolution material. Unfortunately, a similar EOTF characteristic is still noticeable, which is a natural occurrence in televisions that do not have local dimming – they simply struggle to "shine" brighter in a given part of the screen. Despite this design limitation, which cannot be bypassed, we recommend making adjustments in the settings, as the overall colour presentation looks really very good.

The Sharp FQ8 performs adequately with its 10-bit colour reproduction feature, providing smooth transitions between grey shades in the light bulb photo. For optimal results, setting it to medium is recommended, as it avoids issues like grain smoothing or blurring key elements. The "low" setting also yields good results without introducing unwanted visual artefacts.

In terms of upscaling, the Sharp FQ8 TV handles video without overscan, making full use of the screen. The jagged edges of branches are noticeable, but the edges of trousers appear without any clear jaggedness, contributing positively to the overall image quality. Additionally, the TV's AI Super Resolution feature enhances clarity by artificially sharpening jagged elements, further improving the viewing experience.

Television TCL C655 / C69B handles tonal transitions in low-quality materials fairly well. The "Gradual Smoothing" feature on low settings effectively smooths out tonal transitions, but it also blurs important details, such as the texture of objects. A positive aspect is that it does not negatively affect film grain, which helps to maintain the natural look of the image. In terms of digital processing, the television adds artificial sharpness, which some users who prefer a sharper image might appreciate. However, for those who prefer a softer look, this may be a drawback. Another downside is that the image has been significantly cropped due to the so-called overscan, which reduces the field of view and cuts off the edges of the image.

The Sharp FQ8 features a 120 Hz panel, able to support playback at 144 Hz when connected to a PC, which should theoretically provide smooth motion rendering. The TV includes features designed to enhance film fluidity and reduce motion blur, crucial for more dynamic content. However, in the absence of Black Frame Insertion (BFI) technology, the panel's average response time leads to less-than-ideal results. This results in slight motion blur, which may be particularly noticeable when watching sports or during intense gaming sessions.

The television C655 / C69B is equipped with a 4K@60 Hz panel, which means it's best suited for watching movies and less dynamic content. It also features a "Flicker Reduction" function, allowing users to adjust the smoothness of the image – they can choose whether they prefer smoother motion or a more cinematic, frame-like effect. The television can also adapt to lower resolutions, such as Full HD and 2K at 120 Hz, which will surely please gamers by offering a smoother image at the cost of resolution. It’s worth noting that this feature is available in sizes starting from 55"+. Additionally, the largest variant, 98", is equipped with a 144Hz panel with full motion smoothing.

The Sharp FQ8 offers several features that cater to gamers, enhancing the overall gaming experience. Firstly, the television is equipped with HDMI 2.1, which brings several advantages. ALLM (Auto Low Latency Mode) automatically switches the TV to a low-latency mode when a gaming device is detected. VRR (Variable Refresh Rate) helps reduce screen stuttering by adjusting the screen’s refresh rate to match the number of frames generated by the console or PC, providing smoother gameplay, especially in dynamic games. Additionally, the TV supports G-Sync, which synchronises the image with the graphics card, preventing stuttering and screen tearing.

Despite these advantages, the FQ8 has some limitations. The lack of support for HGiG (HDR Gaming Interest Group) means the TV does not optimise the dynamic range for HDR games. Furthermore, while Dolby Vision mode can improve picture quality in supported games, it suffers from very high input lag.

The TCL C655 / C69B TV offers an almost perfect set of features for gamers, supporting all the key technologies. It has an ALLM feature that automatically switches the TV to low latency mode, significantly improving responsiveness and minimising signal lag, which is especially important during dynamic gameplay. The VRR feature allows synchronisation of the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay.

The TV also supports Dolby Vision in gaming mode, ensuring better colour and contrast reproduction in games that support this format, and the Game Bar enables quick access to gameplay-related settings, such as response time, latency level, and other parameters. Unfortunately, the C655 / C69B does not support 4K resolution at 120 Hz (the 98" variant is the exception), which may be disappointing for more demanding gamers seeking the ultimate smoothness in high-resolution games. However, if we can forgo 4K, the TV offers support for Full HD and 2K at 120 Hz, providing a smoother image and serving as a great alternative for those who prefer higher refresh rates at the expense of resolution.