It does, moreso than ever before, because fast internet speeds allow on-demand access and no-one has to download anything. Media files like Youtube videos or podcast episodes rarely get archived, at least in a publicly accessible way. Once they are taken down, they are usually gone.

There's a particular 1970s Pan Am ad I regret not saving: just a man looking at the camera and challenging the viewer to "do the things you always wanted to do" instead of worrying too much. Few years ago it got taken down from Youtube and I haven't been able to find it anywhere else online.