Sharp FQ8 vs TCL C69K / Q6C

Sharp FQ8 can achieve a maximum brightness exceeding 450 nits, which is a satisfactory result. Although it may seem that this value is not impressive, it still places it among the top televisions in this price range. In our opinion, this is also a value from which we will feel the richness of the image and the operation of any metadata, which cannot be said about darker devices. The television supports the advanced HDR format known as Dolby Vision. It is also equipped with DOLBY Vision IQ technology, which stands out for its ability to automatically adjust brightness and image colours based on the lighting conditions in the room. Unfortunately, it has been poorly implemented, resulting in significant inaccuracies such as artificial brightening of the image. Therefore, we do not recommend using this technology in this model. Additionally, the colour gamut coverage is around 94% thanks to the use of quantum dot technology, enabling vibrant and realistic colours. This set of features ensures that the image is not only intense but also full of details.

In terms of brightness, TCL C69K / Q6C is a moderate model. In optimal film conditions, it shows its full potential, achieving a maximum of around 600 nits. In scenes with large, intense light sources, the HDR effect can be truly satisfying, providing a cinematic shimmer. However, it should be noted that when managing backlight zones, there are situations where parts of the image become dimmed, and sometimes they are barely visible. This suggests that there is still a lack of proper optimisation of the algorithms; however, considering the technical parameters in this price range, the design itself still presents very well.

The colour reproduction test in Sharp FQ8 was conducted in film mode, which out of the box offers the best visual capabilities, providing viewers with a colour experience closest to reality. Nevertheless, it cannot be described as exceptional, as there are still some shortcomings that affect the overall picture quality. Colour reproduction in Sharp FQ8 for HD content demonstrates significant issues with white balance. On the graph, the red line clearly rises, indicating excessive dominance of the red colour. This is also confirmed by tests using colour samples, which show that many colours deviate towards red. For example, in a scene from a film featuring a child, the image is very warm and unnaturally red. Similar difficulties occur with 4K HDR content, where there is also noticeable excessive presence of the red colour. It is worth noting this, especially for those who value faithful colour reproduction.

Regarding contrast for SDR, at the beginning of the gamma graph there is a strange characteristic, suggesting issues with reproduction. Subsequently, the entire line is below the reference line, indicating that the television does not achieve appropriate brightness and contrast values in standard content. Meanwhile, the EOTF curve for 4K HDR shows significant discrepancies. Such fluctuations indicate difficulties in maintaining consistent brightness reproduction, leading to unpleasant visual effects when viewing HDR content.

The Filmmaker mode, which has made its debut in this year's TCL televisions (including the C69K / Q6C), is definitely the best choice "to start with." This is the mode we recommend for daily film and series viewings. Unfortunately, as is often the case, best does not mean perfect. In SDR material, the image proved to be too warm, with a pronounced red tint in the white balance. We had the opposite impression with HDR content – here the image became cooler than it should, due to an excess of blue. Additionally, there is the characteristic of brightness, which at times resulted in overexposure. In practice, this translated into quite noticeable errors in colour tests, which is difficult to accept in a mode branded as "from the creators."

After calibration, for SDR content, the white balance on Sharp FQ8 has been significantly improved, and all lines have come much closer to the reference line. Of course, they are not perfectly straight, but it's hard to expect better results from a television in this price range; they are really very good. Improving white balance means that colours are more natural and accurately reproduced, which positively impacts the overall visual experience. In terms of gamma, the strange jump at the beginning of the graph has not been eliminated, however, after this error, the entire line is much closer to the expected effect.

For HDR content, the white balance is somewhat worse compared to SDR content, but it is still significantly better than before calibration. It is worth noting that the improvement in white balance in HDR contributes to a more consistent and pleasant perception of colours, even though there may still be shortcomings. Regarding the EOTF graph and the associated contrast, our specialists noted that the lack of control over dynamic tone mapping settings hindered the achievement of significant improvement in this area. This leads to uneven brightness representation.

Despite the shortcomings resulting from the inability to adjust settings for dynamic tone mapping, Sharp FQ8 has gained a new perspective after proper calibrations. The improved white balance and better colour reproduction in SDR mode make the image more natural and pleasing to the eye. Although there are still areas for improvement, especially in HDR content, the television offers satisfying visual experiences, making it a noteworthy choice in its price range.

Through white balance correction, we were able to significantly reduce the tendency of C69K / Q6C to distort colours, which yielded a very good final result. After calibration, the issue of excessive warming of scenes in SDR and excessive cooling of the image in HDR disappeared. However, it is worth analysing the brightness characteristics more closely. While in SDR content it is hard to have major objections – the image looks really good, especially in older films, TV programmes or on YouTube – it performs significantly worse in the case of HDR content. Analysis of the EOTF curve suggests that everything is fine, yet in practice (EOTF in films) the limitations of the design itself become apparent. This model has a tendency to excessively brighten small parts of the frame, only to overly dim the entire scene in other situations. The effect of calibration is therefore undeniable, and in terms of colour reproduction, C69K / Q6C gains a lot. Unfortunately, certain limitations arising from local dimming management simply cannot be bypassed.

The "10-bit colour reproduction" feature in Sharp FQ8 performs reasonably well, as we can see in the image with bulbs that shows slight connections between grey shades. For the best results, it is recommended to set medium, which does not reveal issues with grain smoothing or blurring of essential image elements. Alternatively, the "low" setting also proves to be safer and delivers positive effects.

As for upscaling, the Sharp FQ8 television plays back video without overscan, allowing for full use of the screen. The branches shown in the image are noticeably jagged, while the edges of the trousers appear without clear jaggedness, positively affecting the overall image quality. Additionally, the television offers an AI Super Resolution feature, which artificially sharpens jagged elements, enhancing their clarity.

In terms of image scaling, TCL C69K / Q6C performs quite well. Lower quality content appears acceptable, and thanks to the lack of overscan issues, the image is displayed in full without any cropping. However, one should not expect miracles – very low-quality materials will not gain a second life here, as the image processor has its limitations.

Thin lines and details exhibit characteristic tearing, which reveals the absence of more advanced image enhancement algorithms. It is also a pity that the C69K / Q6C lacks a tone transition smoothing feature. As a result, in older films or video materials, banding of colours can be visible and may become distracting during prolonged viewing.

Sharp FQ8 is equipped with a 120 Hz panel, with the possibility of achieving 144 Hz on PC, which in theory should translate to smooth motion rendering. The television offers functions for improving the smoothness of films and reducing motion blur, which is important for more dynamic content. However, the lack of Black Frame Insertion (BFI) technology combined with an average response time of the panel does not yield positive results. The effect is slight blurring of moving objects, and this may be more noticeable when watching sports or during intense gaming.

The use of a 144 Hz panel in TCL C69K / Q6C is a significant advantage in this price range. It represents an important step forward compared to its predecessor (C655 PRO), which only offered 60 Hz in 4K. The difference is particularly noticeable when watching sports or playing games – the ball, players, or dynamic action in games are displayed more clearly and without loss of detail. Another interesting feature is the panel's ability to work at 240 Hz (which the manufacturer does not officially mention) – we will return to this topic in relation to the PC gaming mode. TCL has also added a feature for movie fans: “Motion Clarity”. This allows users to adjust the picture to their preferences using two simple sliders. We can either keep the visible film frame or opt for very smooth, "

Sharp FQ8 offers several significant features dedicated to gamers that can enhance the gameplay experience. First and foremost, the television is equipped with HDMI 2.1, which comes with certain advantages. ALLM (Auto Low Latency Mode) switches the television to a mode with minimal input lag when a gaming device is detected. VRR (Variable Refresh Rate) reduces screen stutter by adjusting the refresh rate to the number of frames generated by the console or computer, providing smoother experiences, especially in dynamic games. Additionally, the television supports G-Sync technology, which synchronises the image with the graphics card, eliminating stuttering and screen tearing. Despite these advantages, FQ8 also has some limitations. The lack of support for HGiG (HDR Gaming Interest Group) means that the television does not optimise dynamic range for HDR games. The Dolby Vision mode, although theoretically offering better image quality in games supporting this format, suffers from very high input lag.

TCL C69K / Q6C is a television that can confidently be described as equipment created with gamers in mind. Here we have 4K at 144 Hz, VRR support, automatic game mode (ALLM), and Dolby Vision Gaming. Additionally, there is a practical Game Bar, which is a panel with the most important settings conveniently at hand – useful when we want to change something quickly during gameplay (e.g. screen aspect ratio: Yes, it can be done!). The wide range of VRR, reaching up to 240 Hz, is particularly noteworthy. However, this option is mainly for PC gamers who will operate below the native 4K resolution. In that case, the television can spread its wings and show additional smoothness, especially in fast-paced e-sports titles. For consoles, we stick to the classic limit of 120 Hz, but even so, the capabilities are truly extensive. The only downside is a slight ghosting that can occasionally be seen in dynamic scenes. Other than that, C69K / Q6C offers everything that gamers expect from a television.