High Dynamic Range, or HDR, has revolutionized the way we view content on our televisions. HDR allows screens to display a wider and richer range of colors, brighter whites, and darker blacks. This results in an image that is closer to what the human eye can perceive in real life. As technology progresses, several HDR formats have emerged, each with its own set of specifications and capabilities. Here’s a breakdown of every HDR format explained:

1. HDR10: This is the most common form of HDR and is widely supported by TVs and content producers. It uses static metadata that doesn’t change throughout the video content to provide color and brightness instructions to the TV.

2. HDR10+: An improved version of HDR10, HDR10+ uses dynamic metadata, meaning it can adjust brightness and color levels on a scene-by-scene or even frame-by-frame basis, providing a more precise picture presentation.

3. Dolby Vision: Arguably the most advanced form of HDR, Dolby Vision also employs dynamic metadata similar to HDR10+, but it supports 12-bit color depth as opposed to the 10-bit color depth found in HDR10 and HDR10+. This allows for even more vivid colors and finer gradations between them.

4. Hybrid Log-Gamma (HLG): HLG is designed for live broadcasts and is a joint development by the BBC and NHK. Unlike other HDR formats that use metadata, HLG works without it by integrating an SDR signal into the HDR signal so that one feed can serve both types of displays.

5. Advanced HDR by Technicolor: Less common than other formats, this version involves combining SDR and HDR images into one signal but has not seen as much adoption as others on this list.

6. HDR Dynamic Tone Mapping: It’s essential to note that this isn’t a content format but a feature on some TVs that processes regular HDR content dynamically to improve how it looks on a screen-by-screen basis.

Each format aims to deliver enhanced picture quality over standard definition ranges but doing so using different methods and levels of effectiveness. When purchasing an HDR TV or picking content, it’s crucial to ensure compatibility with these formats to get the best possible viewing experience.