If you own one of the many Android media player available on the market, and wanted to get Google Android TV on your device, the good news is that Google has just published Android TV Launcher on Google Play. So even though you can’t install Android TV on you device just yet, at least you should be able to run the launcher. But unfortunately, there’s also a bad news: Android TV Launcher is only available for Android TV devices such as ADT-1 Devkit or Nexus Player.
I wanted to side-loaded to one of my Android devices, so I tried APK downloader to retrieve the Android TV launcher apk, but it can’t be downloaded unless your use a “Device ID” from ADT-1 or Nexus Player. So if you want to give it a try, you’ll have to patiently wait for the apk to show up somewhere. One place where it might show up first could be on XDA Developer forums.
[Update: Android TV launcher apk is now available: LeanbackLauncher.apk, but I’ve tried it on my Android 4.4.4 tablet, and it does not work, so a device running Android 5.0 may be needed. Other mirror]