The UK has something like this: it's called "legal deposit". Publishers of books and periodicals are required to send copies to the enumerated deposit libraries (one of which is in Ireland despite no longer being part of the UK).
Laws were passed to update this to the digital age, allowing the deposit libraries to archive UK websites. Unfortunately they don't right now archive video. It's also a bit limited given that web publishing is not national, so much UK content is published on US run websites.
Canada does something similar - you can register to become a publisher, which then allows you to issue ISBN numbers for your works (eBooks count), with one stipulation - you have to send a copy of anything published to Archives Canada:
Laws were passed to update this to the digital age, allowing the deposit libraries to archive UK websites. Unfortunately they don't right now archive video. It's also a bit limited given that web publishing is not national, so much UK content is published on US run websites.
See https://www.bl.uk/legal-deposit-web-archiving