Launch the Prime Video app on your Smart TV, Fire Stick, Roku, Apple TV, or console.
Select Sign In.
Choose Sign in on the website or Register on the Amazon website.
A 5–6 digit code will appear on your screen.
On your phone or computer:
Open a browser and go to amazon.com/mytv.
Sign in with your Amazon account.
Enter the code displayed on your TV.
Confirm registration.
Once the code is accepted, your TV refreshes and signs in to Prime Video.
Make sure your TV is connected to the internet.
Update the Prime Video app if the code doesn’t work.
Restart your TV and try again.