Apple TV is a digital media player and microconsole developed and marketed by Apple. It is a small piece of networking hardware that sends received media data such as video and audio to a TV or external display. Its media services include streaming media, TV Everywhere-based services, local media sources, and sports journalism and broadcasts.
Second-generation and later models function only when connected via HDMI to an enhanced-definition or high-definition widescreen television. Since the fourth-generation model, Apple TV runs tvOS with multiple pre-installed apps. In November 2019, Apple released Apple TV+ and Apple TV app a la carte.
Apple TV lacks integrated controls and can only be controlled remotely, through a Siri Remote, iPhone or iPad, Apple Remote, or third-party infrared remotes complying with the fourth generation Consumer Electronics Control standard.
Background
Before the Apple TV, Apple made a number of attempts to create TV-based devices: In 1993, Apple released the Macintosh TV in an attempt to enter the home-entertainment industry. The device had a 14-inch CRT screen and a TV tuner card. It was not a commercial success, with only 10,000 sold before its discontinuation in 1994.