Android TV is an operating system that runs on smart TVs and related entertainment devices including soundbars, set-top boxes, and digital media players. Developed by Google, it is a closed-source Android distribution. Android TV features a user interface designed around content discovery and voice search, content aggregation from various media apps and services, and integration with other recent Google technologies such as Assistant, Cast, and Knowledge Graph.
The platform was unveiled in June 2014, as a successor to Google TV, available first on the Nexus Player in October. The platform has since been adopted as smart TV middleware by companies such as Hisense, Sony, Panasonic, Philips, Sharp, Motorola, Nokia, Toshiba and TCL. Android TV products have also been adopted as set-top boxes by a number of IPTV television providers. The "Operator Tier" certification allows operators to distribute their own custom devices based on the Android TV platform.