A:Answer It does not depend on a subscription to Amazon unless Amazon is the source of your programming. The number of TV sets, each with separate Fire Stick, will depend on the contract you have with the provider of the programming. For example, my IPTV source has plans for 1 or 3 TV's, with an increased amount for each additional set after that. They can track how many are using your account because each set logs in with your user name and password.