Login to YouTube on your Apple TV
Apple TV has a nice YouTube interface. When you login to your account, you have instant access to your favorites for example. I use it quite often.
After reinstalling my Apple TV, I could no longer login to my YouTube account. It seems this was because I had connected my YouTube account to my Google account. This makes your Google username and password the only access to YouTube. Your original YouTube username and password still exist behind the scenes, but no longer allow access.
Unfortunately, Apple TV only allows logging in to YouTube through a YouTube account. The solution is simple.
- Disconnect your YouTube account from your Google account (go to account settings after logging in to YouTube)
- Login to YouTube on your Apple TV using your YouTube username and password
- Reconnect your Google and YouTube accounts if you wish