Android TV 4.4.4 (KitKat) , the official YouTube for Android TV app is no longer actively supported
- Once the download is complete, open the downloaded APK file.
- Select "Install" to begin the installation process.
- Wait for the installation to complete.
Since the Play Store on KitKat hides this version, you must use the "Sideload" method.
Clear Cache/Data:
Navigate to Settings > Apps > YouTube and select Clear Cache and Clear Data .