You can still use YouTube TV (The old leanback interface) if you set your user agent correctly to spoof Tizen Smart TVs. Works almost well enough with keyboard/

You can still use YouTube TV (The old leanback interface) if you set your user agent correctly to spoof Tizen Smart TVs. Works almost well enough with keyboard/controller navigation but some keys are mapped incorrectly. /usr/bin/chromium --start-fullscreen --user-agent="smarttv;applewebkit;tizen" "https://youtube.com/tv"