For the record, those who are still having "video not available on this device" problems:
Go to Settings, hit Select User Agent, switch to a non-Wii U browser. I use the 3DS one.
Should fix all or most YouTube videos.
Edit: If you then get a Flash message, switch to Android. Should fix that, but you'll be switched to the mobile site.
Go to Settings, hit Select User Agent, switch to a non-Wii U browser. I use the 3DS one.
Should fix all or most YouTube videos.
Edit: If you then get a Flash message, switch to Android. Should fix that, but you'll be switched to the mobile site.