This does work as of 2/17/19 - first you need to input your user and pass, then it will send you a 6 digit verification code .. get back to the sign in page and when you get to your password, enter the password, then the 6 digit code, no spaces between them.Very frustrating this... trying to sign into the iTunes Store on my Apple TV... I get to the stage where it sends the numerical code to my iPad / iPhone, so I enter that code and it just takes me to the 'enter your username' screen, in an endless loop...
Any ideas..?
If this isn't the stupidest procedure I've ever seen nothing is ... this is something the US Government would come up with.