www.amazon.com/mytv code

Where do I enter myTV code on Amazon Prime?

Open the Amazon Prime Video app on your device.
Find the "Register Your Device" or similar option in the app settings to get a unique code.
Go to the Amazon website, sign in, and visit the device activation page.
Enter the TV code displayed on your device.
Follow on-screen instructions to complete activation.

Note: Steps may vary slightly based on your device, so refer to official Amazon documentation for the latest instructions.