Apple TV is a digital media player developed and sold by Apple Inc. It allows users to stream video, music, and other content from the internet or from their personal devices to their television or home theater system.
Like every other Apple product, Apple TV includes comes with a user-friendly interface, support for a wide range of streaming services and content, integration with other Apple products and services, and the ability to control the device using voice commands with Siri.
If you're interested in developing your own app for Apple TV app, you'll need to get a developer account with Apple and have a Mac computer, the latest version of Xcode, and the tvOS SDK. There are also guidelines and resources available to help you with the development process.