I've been acquainted with Android TV since only October 2020, but it seems we saw many improvements regarding the OS in the year 2021.
To me, highlights of Android TV in this year would be:
- The "New" Android TV UI (aka the "Discover" UI)
- Apple TV & Amazon Music becoming available
- YouTube finally adding the "playback speed" feature (and most recently, video chapter support )
- The new boot animation rolling out to more devices via OTA/Firmware updates (about damn time!)
- Play Store on Android TV adding the "Check for Updates" button, at last
- The new remote, in Google TV/Google Play Movies & TV app (added to Google Home app later)
- Google TV adding integration to more streaming & Live TV services
If anything's missing, let me know.
New devices to choose from like the inexpensive ONN Devices.