CBS Radio Mystery Theater is another "OTR Revival" series, from 1974 to 1982.

Complete collection:

https://archive.org/details/cbsrmt-74-02-08-33-conspiracy-to...

https://en.wikipedia.org/wiki/CBS_Radio_Mystery_Theater

Rod Serling hosted The Zero Hour 1973 to 1974:

https://archive.org/details/podcast_zero-hour_259662597

https://en.wikipedia.org/wiki/The_Zero_Hour_(U.S._radio_seri...

And then Sears Radio Theater, aka Mutual Radio Theater:

https://archive.org/details/OTRR_Certified_Sears_Radio_Theat...

https://en.wikipedia.org/wiki/Sears_Radio_Theater

It's amazing what you can find if you know where to start digging.