Apple TV and Fitness+
I just purchased an Apple TV HD and there is no app for Fitness+. It is not in the app store either. I purchased the Apple TV unit directly from Apple.
Question marked as
The Fitness app on Apple TV HD requires system software version 14.3 or later. How to update your Apple TV - Apple Support
The Fitness app requires an additional Apple Watch.
The Fitness app is available in countries and regions where Apple Fitness+ is available. Availability of Apple Media Services - Apple Support
Devices you can use with Apple Fitness+ - Apple Support
Work out on Apple TV - Work out with Apple Fitness+ - Apple Support