If you're looking to install Android TV on a device or emulate it on your computer, I'd recommend specifying the exact device model or your setup for more targeted advice.

There is a project specifically called "Android TV x86." Note that this is . It is designed to run on old laptops or Intel-based mini PCs. If your hardware is ARM-based, these ISOs will not boot. How to Install Android TV on ARM Hardware

If you're trying to revive an instead of an ARM board, I can guide you through the AndroidTV-x86 installation process which does use a standard ISO. Which hardware are you planning to use?