PerfectRec’s gaming score measures a TV's performance when it comes to playing video games. It is based on several factors that can significantly impact the quality of the gaming experience, including screen response time, input lag, and refresh rate. Screen response time is a critical factor that determines how quickly the TV can transition from one color to the next, while input lag measures the delay between the gaming console output and the TV display. Refresh rate refers to the number of times per second that the TV displays a new frame, which can impact the smoothness of the gaming experience. The gaming score also takes into account two other features: local dimming in gaming mode, which can enhance contrast and picture quality, and black frame insertion, which can reduce screen brightness and create a smoother gaming experience.

PerfectRec’s news, talk, & other TV score prioritizes upscaling, brightness, contrast, out of the box color accuracy, and screen uniformity. This is because almost all news and talk shows are created in Standard Dynamic Range (SDR) with lower resolutions, such as 720P and 1080P. The purpose of this prioritization is to ensure that lower resolution content looks good on a 4K display and to help you identify which TV will perform best when watching live TV via Cable, Satellite, or Antenna.

The LG QNED90 is good for watching cartoons and animation because it displays a wide and accurate range of colors right out of the box, which means the vibrant, varied shades common in animated content are well-represented. The TV also has a decent color volume, ensuring it can reproduce these colors across different levels of brightness, which is key for maintaining the vividness of animations in various lighting conditions.

The LG QNED90 is suited for bright rooms due to its very good SDR and HDR brightness, which allows it to produce bright images that can combat glare. However, its reflections handling is only fair, which means it can struggle with direct reflections, although it will still perform adequately in most bright environments.

The LG QNED90 delivers good picture quality due to its effective local dimming feature and high HDR brightness, enhancing contrast and making highlights pop in HDR content. Additionally, this TV offers a wide color gamut and maintains color volume, which means it reproduces a wide range of colors accurately, making images look vibrant and true to life.

The LG QNED90 offers fair performance for watching movies and cinematic TV owing to its adequate local dimming feature that enhances contrast, but falls short due to its less impressive black uniformity which can affect the depth of blacks in dark scenes. Furthermore, the viewing experience is also impacted by its limited contrast capability, which is crucial for a true cinematic feel with deep and rich blacks.

The LG QNED90 has fair motion processing which makes it less optimal for fast-moving scenes seen in sports, and while its response time is good, meaning it can handle fast action with less blur, this may not be enough to compensate for its motion processing shortcomings. Its handling of reflections and viewing angles, critical for sports watching, are not detailed here, so without this information, evaluating its performance for sports specifically based on reflection handling and viewing angles isn't possible.