@Mike I don’t know if this post goes in here but at the other hand it’s a reply to @Ben_Sound, It’s a link to an american webpage where you can find “Old Radio Shows”, the reason I ask is because maybe this link can go somewhere else. I put this at your judgement, it’s a very cool webpage that I found.
https://archive.org/details/oldtimeradio
For example, the famous Orson Wells War of the worlds; you know what happend with that audio at 1938. Here is the recreated audio