Android TV is a smart TV operating system based on Android and developed by Google for television sets, digital media players, set-top boxes, and soundbars. It is essentially Android optimized for the big screen, designed to bring the sorts of things you enjoy on your phone to your TV. Here are some key features of Android TV:

• Content discovery and voice search: Android TV features a user interface designed around content discovery and voice search, allowing users to easily find and access their favorite content.

• Integration with other Google technologies: Android TV integrates with other recent Google technologies such as Assistant, Cast, and Knowledge Graph.

• Support for apps and games: Android TV supports a wide range of apps and games, including popular streaming services like Netflix, Hulu, and Amazon Prime Video.

• Customizable home screen: Android TVs home screen uses a vertically-scrolling, row-based interface, including a "content discovery" area populated by suggested content, followed by "Watch Now" rows that surface media content from installed apps.

• Voice input and universal search: Android TV supports voice input for commands and universal search across multiple services using Google Assistant.

Android TV is not the same as a regular smart TV. It is a TV that uses Android as its operating system, which has been adapted for the big screen. Android TV has access to the Google Play Store, which lets users download apps and games, as well as access things like the Google Assistant. Android TV is superior to a smart TV in terms of updating applications and streaming media resources, and it supports more applications than a smart TV.