At several points in my career, I worked at stations that featured some kind of late-night drama or comedy from the golden days of radio, a time when people gathered around a giant console and listened to shows much like we watch TV today.
There were horror shows, adventure serials, lots of cop/detective dramas, plenty of soap operas and uncountable variety programs.
Fidelity was not good, the acting ham-handed at times and the sound effects cheesy, but they were hugely entertaining.
If you have a soft spot for old-time radio, which is why I was happy to find Vintage Radio, an app that offers access to 34,000 of this shows, mostly from the 30s and 40s. I think I'm going to give this a try.