TCL P89K / TCL P8K vs TCL C7L

The maximum brightness of the TCL P8K is around 300 nits, although in real film scenes, the television maintains more of a level of about 250 nits. These values cannot be considered sufficient to achieve a full HDR effect – they are closer to a solid base for SDR content. Therefore, we will not see spectacular flashes, bursts of light, or moments in which the screen actually "blinds," as is the case with more expensive models. This makes the image somewhat flat, and the differences between light and shadow are more symbolic than realistic. Fortunately, TCL has a few aces up its sleeve that save the overall reception. One of these is the coverage of the DCI-P3 colour palette at around 93–94%. Thanks to an additional QLED layer (PFS LED), the colours gain depth and intensity, clearly surpassing standard LCD panels. As a result, although there is a lack of the typical "wow effect" associated with HDR brightness, the image itself can impress with its saturation and vibrant tones, making film scenes pulse with colours and not appear strongly washed out.

The TCL C7L is, without doubt, an extremely bright TV. In synthetic tests using static test patterns it can reach peak brightness of around 2800 nits. That's a truly phenomenal result, given the price bracket it occupies. Unfortunately, measurements with real film scenes are not as spectacular as the white-square tests. Brightness in real HDR footage on the C7L falls to around 1200 nits. That's still very good, because the vast majority of modern films are graded to that level. However, when small, pinpoint elements appear on screen, the brightness of those details drops dramatically, even to around 400 nits, which reduces the HDR impact. The TV does this deliberately to preserve black levels and avoid excessive blooming. This is somewhat understandable, but it also shows that Mini LED technology is not completely without compromises in this respect. As for the HDR effect itself, alongside brightness the key factor is, of course, colour. Thanks to the use of new 'super' quantum dots, the colours are simply superb and among the best on the market. The TV is able to achieve very wide coverage of the BT.2020 and DCI-P3 colour gamuts, matching the best RGB Mini-LED screens with ease. Best of all, the C7L can maintain such high colour saturation regardless of the scene being displayed, which is often problematic in competing RGB Mini-LED TVs.

In Filmmaker mode, the TCL P8K revealed certain imperfections in image reproduction from the outset. We noticed that the television had a tendency to slightly brighten scenes – its gamma was somewhat low, causing the image to appear slightly "washed out", lacking depth, as if the contrast had slipped out of control. This was most evident in HDR content, where the EOTF brightness graph clearly deviated from reference values. As a result, darker areas of the image appeared too gloomy, while brighter areas did not always reach the correct level of luminance. Another noticeable issue was a slight overemphasis on blue – the television stubbornly boosted this colour, causing certain parts of the image, especially skin tones and reds, to have a subtle purple tint. This is not a major flaw, but it is noticeable to a trained eye. Fortunately, most of these errors could be corrected during calibration. You can see the results of this adjustment in the graphs and photos below.

When it comes to out-of-the-box colours, what's new in TCL TVs, including the C7L model, is the addition of a picture mode called Filmmaker Mode. This is significant because such a mode was not previously available from this manufacturer. As the name suggests, this setting is meant to present the picture with the filmmaker's full intent. After our tests we can confirm that it is, without doubt, the best built-in mode on this TV if you want faithful colour reproduction straight out of the box. However, we certainly wouldn't say it's perfect. Like most devices on the market, this C7L also had some factory calibration errors. The white balance in Filmmaker mode drifted towards a slightly greenish-yellow tint, caused mainly by an excess of the green component and a noticeable shortfall in blue. Of course, this won't be a major drawback for the average viewer, but if you care about perfect whites, natural skin tones and getting the full potential out of the structure of those new "super" quantum dots, the TV really needs professional calibration.

After calibration, the TCL P8K showed a completely different face. It managed to achieve nearly perfect, even reference-level color reproduction in both SDR and HDR content. The screen no longer had a tendency towards a cool tint, and the white balance was perfectly balanced. The gamma values for SDR material also finally look as they should – the image has the proper depth and no longer appears washed out. The only remark that can still be made about the P8K concerns its "Chinese" traits, known from most TCL models. The TV still likes to manipulate saturation in HDR content in its own way – sometimes slightly boosting it, sometimes smoothing it out, which means the effect is not always fully predictable. Nevertheless, after calibration, the colors look stunning, and their accuracy is truly surprising. In most cases, measurement errors dropped below values of 1-2, which is a result that significantly more expensive models would not be ashamed of.

After professional calibration we managed to greatly improve the situation in the factory Filmmaker Mode. After our corrections, the errors in the ColorChecker test and across the wide colour gamut fell below the threshold of human perception, that is below a value of 3, which is a very good result. The TCL C7L definitely benefits from such a procedure in terms of colour fidelity, and it's hard to deny. Brightness management for HDR content looks a little worse after calibration, though. As I described earlier, even though we set this model up correctly, when you play real film scenes the TV can handle its brightness in a rather peculiar way. It often brightens some elements on screen contrary to the creator's intent, which is clearly visible in the EOTF traces measured from specific films. Despite this defect, or rather a specific characteristic of the television, one thing you can't fault is that after calibration the C7L was able to reproduce colours accurately.

The TCL P8K performs somewhat worse when it comes to the fluidity of tonal transitions in lower-quality materials. The television does offer a function to smooth out unwanted bands; however, its effectiveness leaves much to be desired. Even at the highest setting, it's hard to talk about any real improvement – at times the effect is almost the opposite of what is intended, as the function can introduce small artifacts and unnatural blurring on the screen.

On the other hand, upscaling – that is, scaling the image to 4K resolution – looks significantly better. The P8K handles this task surprisingly well – HD content, and even SD, is enhanced in an aesthetically pleasing manner without excessive loss of sharpness. While there are slight "hard" edges typical of this class of equipment, this can be easily adjusted with the sharpness slider to suit personal preferences. The final effect is more than satisfactory, especially considering the price range in which this model is situated.

This can be seen as, to some extent, the Achilles' heel of the C7L. Unfortunately, this TV uses the older MediaTek Pentonic 700 chip, which has never been famed for outstanding digital image processing. You can clearly see that in the behaviour of the progressive smoothing function, the feature responsible for reducing jagged edges and removing digital noise. It simply performs very poorly. When set to low, its effectiveness is almost non-existent. The only small plus is that the algorithm does not further spoil the picture or blur details unnecessarily. Upscaling, that is scaling lower-resolution content to 4K, performs slightly better. It is simply adequate and does not stand out against the competition. There is no denying that the C7L would benefit greatly in this regard if the manufacturer opted for the newer Pentonic 800 processor, which is now appearing in an increasing number of rival models.

TCL P8K is one of the cheapest televisions offering a refresh rate of 144 Hz, which in itself is quite an advantage in this price segment. Thanks to the fast panel, this model can confidently be recommended to both sports fans and video gamers – the image is smooth, and the movement of the ball or dynamic actions look natural. However, this does not mean that the P8K is suitable solely for sports. On the contrary – it can also maintain appropriate dynamics in films without introducing the artificial effect of "theatricality", as long as we set the parameters wisely. The television is equipped with a motion smoother called "Motion Clarity", which features two sliders: blur reduction and judder reduction. The first is responsible for smoothing the image by generating additional frames, which increases fluidity, but may cause a slight soap opera effect. The latter, on the other hand, reduces judder and improves sharpness during movement, although it can slightly darken the screen. Properly adjusting these two parameters allows for a really good balance between natural motion and fluidity. It has a 60 Hz refresh rate, but it is hard to say that it is a top-tier panel in terms of response speed. It will perform well for dynamic content, although more demanding users will notice that it is not a screen from the highest class in terms of motion clarity.

The TCL C7L uses a native 4K panel with a 144 Hz refresh rate, which at lower resolutions when connected to a PC can even reach up to 288 Hz. These are, of course, very high figures and impressive on paper, but bear in mind that almost all the dynamic content you’ll watch on this TV will still run at around a maximum of 120 Hz. To rein in that motion, the TV’s menu includes a motion-smoothing system called "Motion Clarity". It offers several preset modes, including a user mode that we strongly recommend you set manually using our tried-and-tested guides on our YouTube channel. There are two key sliders available. The first, "Blur Reduction", is responsible for cutting motion blur and improving sharpness in dynamic 60-fps material, such as sports broadcasts. The second slider, "Flicker Reduction", lets you add artificial frames to films and series shot in cinematic 24 or 30 frames per second. This, of course, can completely eliminate the irritating judder that appears during camera movement.

Although the TCL P8K is a budget television, it cannot be said that it is unsuitable for gaming. On the contrary – it is a screen that can pleasantly surprise any gamer. It features two HDMI 2.1 ports, allowing for 4K output at 120 Hz without any issues. For those gaming on a PC, they will also be pleased to know that the television can operate with a refresh rate of up to 240 Hz at a lower resolution – a small thing, but it delights. Additionally, it comes with a full set of gaming features: automatic game mode, Game Bar with quick parameter previews, VRR, HGiG, and support for Dolby Vision in games. All of this makes gaming on the P8K a truly enjoyable experience – the picture is smooth, the response is quick, and the television communicates well with next-generation consoles. The TCL P8K shows that a cheap screen doesn't have to mean giving up on fun. Certainly not in terms of gaming.

When it comes to gaming, the TCL C7L is simply an outstanding TV for players. Thanks to two HDMI 2.1 ports with full 48 Gbps bandwidth, you get access to all the key features required by console owners and powerful PC rigs. There’s a well-working ALLM mode with very low input lag and VRR frame synchronisation that operates over an impressive range from 48 to 288 Hz. Importantly, unlike some rivals, TCL has properly implemented the console HDR10 HGIG profile and supports Dolby Vision in games. The package is completed by a very well designed gamer panel, the Game Bar, which even lets you edit its appearance and change the theme so it perfectly matches the style of your console.

The only thing you can, and even should, criticise is that the TV offers only two full-spec HDMI 2.1 ports, while the other two are older HDMI 2.0. That creates quite a logistical problem. Why? Because one of the fast ports also handles the return audio channel eARC. In practice this means that if you connect a soundbar or home cinema system to the TV, you’ll be left with just one free HDMI 2.1 socket. If you have two consoles at home, or a console and a powerful PC, unfortunately you’ll have to give something up or keep juggling cables at the back of the case while trying to maintain convenient control of the audio system.