Turn on Match Dynamic Range or Match Frame Rate on your Apple TV
Learn how to turn on frame rate and dynamic range matching.
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
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.