I like old-time radio. One my favorite shows is “Sgt. Preston, Challenge of the Yukon”. I always thought it was just good entertainment. Only now do I realize it was Canadian propaganda meant to scare us, and soften us up.
Here’s a sample episode.
https://youtu.be/ypsYOsV9UwE?si=E2kYL7zpXMGqClqm
That was one of my FAV. radio shows as a child! I even ate shredded whet to collect the Sgt. Preston cards. ;^)