Find movies with 4K, HDR, Dolby Vision, or ... - Apple Support
support.apple.com › en-us › HT207949Mar 02, 2022 · If you previously bought an HD movie from the Apple TV app, you might have access to the 4K, HDR, Dolby Vision, or Dolby Atmos enhancements on a compatible device. If your purchase doesn't have a high-quality version now, it might be added later. To check the video quality, tap or click a movie in your library.
Dolby vision apple tv+ - Apple Community
discussions.apple.com › thread › 250812286Nov 01, 2019 · Here are some examples of Dolby Vision tone mapping or raised black display errors in Apple TV4K Dolby Vision content on my TCL 55R625 TV. It only happens in very dark scenes and only with Dolby Vision content from Apple TV over HDMI. It doesn’t matter which Dolby Vision preset is used but I’ve tried all different settings and a factory reset.