If you don't want to mess with APK files, your TV’s built-in browser is your best friend. Open the TV browser.
It doesn't rely on outdated Google Play Services.
Plugs into the HDMI port and gives you a modern, fast YouTube app for under $30.
Navigate to (the "Leanback" interface) or the standard mobile site.
Download the APK on a computer, move it to a USB drive, and install it on your TV using a File Manager. 2. Use the Browser (The Quickest Fix)
Bookmark this page on your home screen for one-click access. 3. Sideload an Older "YouTube for Android TV" APK
If your TV's date/time is wrong, Google’s security certificates will fail, causing YouTube to crash.
The native app may be dead, but the developer community has created . It is an open-source YouTube client designed specifically for Android TVs.