Apple not verifying password

I see that a post from John007 solved, for others, the same problem that I am having. I installed a fire stick on my Sony smart tv in order to get Apple TV and watch my MLS subscription. Apple will not verify my password. I have spent a good part of 3 days now on the phone with Apple and Amazon with no solution as a result. I understand that John007 has solved this problem for others and would like to see his solution. We had to watch the first game yesterday with three of us trying to watch the game on my iPhone 13’s screen!

I’m new to this site. Posted a question but don’t know how to open the reply. I need to see the Post from John007 regarding a solution for Apple not verifying password after I installed a fire stick.