Go to Settings > Video and Audio > Match Content, then choose from the following:
- Match Dynamic Range: Turn on to have Apple TV 4K match its output to the original dynamic range of content that you’re watching.
- Match Frame Rate: Turn on to have Apple TV 4K or Apple TV HD match its refresh rate to the original frame rate of content. This applies to content that's mastered at different frame rates — for example, 24fps film-based content or other international content.*
If you turn on either of these settings, Apple TV will attempt to automatically determine which dynamic ranges or frame rates your television supports. You might experience a blank screen or flickering as your television switches between formats.
If Apple TV can't determine which display formats are available, you need to verify which formats your television can display. To verify a format, go to Settings > Video and Audio > Match Content. Then select a format under Unverified Formats to run a short display test and verify that it displays correctly on your television.
*Apple TV matches the frame rate of content encoded at 60, 50, 30, 25, and 24fps. Frame rates match the refresh rate appropriate for your region, for example 29.97fps for NTSC. 25fps and 30fps content uses frame rate doubling to display at 50Hz and 60Hz when available, matching its original appearance while preserving a fluid user interface.