Hot on the heels of the iOS 11.2 release, Apple has flipped the switch on tvOS 11.2. You can download it now on the Apple TV 4th gen and Apple TV 4K. Go to the Settings app and navigate to System > Software Update.
This update adds two significant features. First, the TV app now has a Sports tab. You can pick your favorite teams and see schedules, live games, and (optionally) scores. Go to Settings > Apps > TV to turn off sports scores in order to prevent spoilers.
Perhaps more important for those with the new Apple TV 4K, there are options in the Audio & Video section of Settings to match the dynamic range and frame rate of content. As originally shipped, the Apple TV 4K would convert all content, regardless of whether it was HDR or SDR and no matter its frame rate, to 60Hz HDR on supported TVs. The goal was to eliminate the flickering and HDMI handshake errors that sometimes crop up as TVs switch modes, but some users found that it also introduced corrupted colors and frame pacing problems.
Now, you can optionally allow the Apple TV to switch its output to standard dynamic range for non-HDR content, and to output the content’s exact frame rate (useful for 50Hz international content or 24Hz movies).
You’ll find these options in Settings > Video and Audio > Match Content.