Your link doesn't work for me. Try this: https://www.televideo.rai.it/televideo/pub/index.jsp

By the way, an interesting book called "La TV da sfogliare. 1984-2024. 40 anni di Televideo" by Guido Barlozzetti came out this year.

It's super interesting (if you speak Italian and) if you're curious about the history of the Italian teletext.