To understand the download and installation process, one must first understand the architecture of the Android TV OS.
The most reliable way is via Android Emulator in Android Studio: android tv 12 iso download work
No standalone ISO exists for this purpose. To understand the download and installation process, one
Android TV utilizes a specific user interface paradigm known as "Leanback." Unlike the touch-centric interface of mobile Android, Leanback is optimized for D-pad navigation (remote controls) and large screen formats. Android TV 12 introduced refined visual transitions and improved "Play Next" row functionality, which integrates content from installed applications directly into the home screen. No standalone ISO exists for this purpose