I remember them, and it would have been the late 80s or early 90s. I had to ask my dad what it was, but I remember thinking maybe I would need to use that serv

I remember them, and it would have been the late 80s or early 90s. I had to ask my dad what it was, but I remember thinking maybe I would need to use that service someday. If you want to go down a rabbit hole, here's a classic video where a guy makes a brand new tube by hand: https://youtu.be/EzyXMEpq4qw https://youtu.be/EzyXMEpq4qw