[Stratoscope]

The Bell System did this when dial telephone service was first introduced.

They held town meetings with a giant rotary dial onstage where someone explained it and demonstrated how to dial your calls.

And they made an instructional film about it!

https://www.youtube.com/watch?v=p45T7U5oi9Q

[xattt]

Civil engineering-wise, our provincial government ran practice sessions for drivers when roundabouts started going in.

https://www.cbc.ca/news/canada/prince-edward-island/islander...

[dtagames]

Thanks for the link. I love old educational films and that one was great!