Just go into the Apple TV menus and unpair it from your current remote. — A member replied: “I've seen that answer before. I'll look at again, but don't think that worked either. Checked last night on iTunes and unpair grayed out and looked on Apple TV and clicked unpair... no change.”
Just go into the Apple TV menus and unpair it from your current remote. It will then work with all remotes, like Roomie.