The TCL S555 is very good for watching cartoons and animation because it displays colors accurately straight out of the box, meaning you don't need to tweak settings for a vibrant picture. Additionally, it offers a good color gamut, ensuring a broad range of colors, which enhances the viewing experience for animated content that often features diverse and bright colors.

The TCL S555 is ideal for movie and cinematic TV viewing due to its high contrast ratio and solid black uniformity, which allow it to display deep blacks for a more immersive experience in dark scenes. However, its somewhat limited viewing angles and color performance may affect how the picture looks from the side and how vibrant the colors appear, but its out-of-the-box color accuracy is commendable.

The TCL S555 displays vibrant colors straight out of the box and supports a wide color gamut, ensuring that hues appear varied and intense, which is central to an engaging viewing experience. Its excellent contrast ratio enhances the depth of dark scenes, and the commendable black uniformity delivers consistency in shading, especially noticeable in darker content.

The TCL S555 is good for bright rooms because it has a very good SDR brightness, which helps maintain picture quality in well-lit environments, although its ability to handle reflections is poor, which could be an issue with direct light sources like windows or lamps.

The TCL S555 is equipped with strong upscaling capabilities that enhance lower resolution content, making standard definition news broadcasts and talk shows look crisper, and it boasts very good SDR brightness, ensuring a clear and bright image for these types of programs even in well-lit environments. Additionally, it has appealing colors out of the box, providing a vibrant viewing experience without the need for calibration.

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.

The TCL S555 has a good response time which is beneficial for watching fast-moving sports, but its poor reflection handling can be a drawback in bright rooms, making it hard to see the action clearly. Additionally, narrow viewing angles may cause the picture to look less accurate from the side, which is not ideal when watching with a group.