Philips PUS8079 vs LG UT8100 (IPS)

The Philips PUS8079 has a maximum brightness of just 202 nits in content with a wide tonal range, which is very low and makes it unsuitable for streaming movies and series in the highest quality. Additionally, using HDR with dynamic metadata doesn’t improve the situation, as the only HDR format available on this model is HDR10+, which is rare and has limited content support. The TV also uses WLED backlighting, which is not optimal and results in only 80% coverage of the DCI-P3 wide colour gamut. This limits the intensity of colours in HDR content.

The LG UT8100 television unfortunately does not meet expectations in the HDR effect category. The peak brightness of only 300 nits on the luminance graph is significantly below the required value to fully enjoy HDR effects. In practice, the image resembles SDR quality more than true HDR, which is particularly evident in demanding high-contrast scenes. The coverage of the DCI-P3 color palette is only 82%, which further limits the ability to present vibrant and rich colors. Instead of impressive visual experiences, we get a muted and washed-out image. For those looking for a television to fully utilize HDR content, the LG UT8100 model proves to be highly disappointing.

The best factory mode for colour reproduction and fidelity to the director's vision on the Philips PUS8079 was the "Film" mode. However, this setting displayed significant discrepancies between the filmmaker's intent and the actual output. In both SDR and HDR materials (with HDR being less affected), the white balance was off, showing a blue tint similar to store displays, rather than pure whites. When it came to SDR materials, gamma was notably lowered, cutting into the already limited contrast and brightening the overall image. The EOTF curve in HDR content also showed a significant drop below the reference line, making HDR materials appear even darker. The colour accuracy in both SDR and HDR modes was poor, with high deltaE values indicating that the colours were far from their intended representation.

The Filmmaker Mode on LG UT8100, although theoretically the best for watching movies, has significant flaws. The biggest issue is white balance – drops in blue color cause noticeable yellowing of the image, visible in both HD and 4K content. These errors are confirmed by the measurement results in the Colour Checker test, which indicate significant deviations in color reproduction.

As for brightness characteristics, both HD and 4K content feature a high tonal boost. The gamma curve in both cases remains well below the reference value of 2.4, leading to excessive brightening of darker elements in the image. A similar problem is evident in the EOTF curve – in the case of 4K content, the TV struggles with proper brightness management, resulting in issues with screen brightness. This means that the factory settings of this model require significant adjustment to achieve better image quality.

Fortunately, Philips incorporates advanced image correction tools across its televisions. SDR content benefited the most from these adjustments, with significant improvements in deltaE errors, white balance, and gamma. While the image still isn’t perfect, it is much more watchable, making it easier on the eyes during movie or series viewing. HDR content, however, was more challenging due to the television’s low luminance. While the EOTF curve and white balance improved, the corrections weren’t as effective as with SDR materials. It’s important to note that each unit may have different errors, some larger and some smaller, but the adjustments made were a step in the right direction.

After calibrating the Filmmaker Mode, the gamma has been aligned to practically ideal, reference values, which significantly improved the overall tonal characteristics in HD content. 4K HDR content also looks better, although some issues are still visible at the end of the graph, where the curve deviates from the ideal. The EOTF curve performs worse, as the television struggles to maintain appropriate brightness values. As a result, the image in some scenes may be overly bright or slightly dimmed, which stems from the device's design. Nevertheless, the calibration has brought significant improvements, especially in the case of HD content, where tonal balance and color reproduction are now at a much higher level.

Let us revisit the topic of tonal transitions, this time in the context of overall image quality enhancement. As shown in the photo on the left, the gradation improvement feature delivers excellent results. It provides multiple settings, each offering noticeable benefits without softening the film grain effect. Once again, it must be emphasised that this feature is the standout advantage of the tested television.

On the other hand, the television’s performance in image scaling leaves much to be desired. Fine details often appear heavily jagged, with a noticeable white halo around figures. Additionally, the significant artificial sharpening detracts from the overall image quality.

The fluidity of tonal transitions is also correct, although the effect depends on the settings. The update improved the functionality of smooth gradation, smoothing transitions better than before, but introduced minor issues with loss of detail, e.g., on textures.

Image scaling on LG UT8100 performs very well. The image presents itself decently, without major issues with edge aliasing. Details are preserved at a satisfactory level, which makes lower-resolution materials look really solid on this TV. As a result, users can enjoy watching older content without obvious quality flaws.

This paragraph will be notably brief due to the absence of even basic motion-smoothing functionality, which is unsurprising given the device's budget-oriented nature. The VA panel used here is not known for exceptional sharpness and is instead associated with high contrast and slower response times, as confirmed by the matrix analysis results. Photos captured during fast motion reveal typical motion blur for this type of panel. While not ideal, the television could be conditionally suitable for watching sports, though viewers should expect less-than-optimal motion clarity. Additionally, films may exhibit noticeable stuttering due to the lack of any motion-smoothing features, even basic ones.

LG UT8100, equipped with a 60 Hz display, will be especially suitable for people watching movies. The television offers the TruMotion system with de-judder effect adjustment, allowing users to customize the fluidity of the image – from more choppy to exceptionally smooth, reminiscent of a soap opera effect, depending on user preferences.

The Philips PUS8079 provides only basic gaming features, including ALLM, VRR, and a Game Bar. The key highlight is the inclusion of dynamic frequency adjustment, which ensures a smooth image with minimal screen tearing—an impressive offering for this price range.

A notable benefit for gamers is the presence of the Game Bar, allowing adjustments to be made "on the fly" without needing to exit the game. Importantly, this feature retains options found in higher-end models, such as shadow enhancement for improved visibility in darker areas and a colour filter designed to assist gamers with visual impairments.

LG UT8100 offers basic features for gamers, such as ALLM and Game Bar, which makes access to settings easier. The TV also supports HGiG, which improves image quality in HDR games. Unfortunately, the lack of support for Dolby Vision and VRR limits the capabilities of the device, as does the 60 Hz panel, which excludes support for 120 Hz resolution. This model will be more suitable for less demanding gaming applications.