Ideally, these should be videos you have permission to use on your website!
Click on ‘Add images and videos’ button, then select ‘Add video from Youtube’ or ‘Add video from Vimeo’.
The video above and instructions below will show you how to get past the forced update in order to complete the initial setup without updating.
The reason you might want to avoid updating is to ensure your Fire TV Stick is as compatible as possible with a potential future rooting method.
Our experience with the Fire TV has shown us that different software version will handle failed updates differently.