Download the Apple TV app on your Fire TV device from the Amazon Fire TV Games & Apps Store.
Open the Apple TV app.
Sign in to the Apple TV app, through the in-app Settings (sprockets wheel icon), with your Apple ID account. If you don’t have such an account yet, then the app should guide you in creating that.
Currently the Apple TV app on Fire TV doesn’t support in-app purchases. That means that the transaction for any subscribing or buying or renting should be done on a different supported device (e.g. iPhone).
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I cannot sign in on my tv
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