AppleTV (app, not device) won't accept password
Just signed up for the AppleTV app. I am able to sign in and view content on my phones, an older TV and several PCs, but not on our 6-month-old smart TV. Each time, I receive a message that the account information is incorrect (yes, same user ID and password, exactly). The login screen on this TV also won't show alternate login methods (QR code, or code to input at activate.apple.com, as my older TV allowed in addition to accepting the direct login credentials).