This weekend, "When Radio Was" will feature the Jack Benny spoof of "Algiers" (original airdate: October, 1938).
As sometimes occurs on "When Radio Was", the show will be split into two parts, the first half heard on Saturday (July 11th); the conclusion on Sunday (July 12th).
The show, as you know, is nationally syndicated. Normally, the best bet to hear "When Radio Was" is Chicago's WBBM; however, I don't think they carry the show on weekends.
You'll be able to hear the show on the "When Radio Was" website through July 18th (Part 1) and through July 19th (Part 2).
Usual disclaimer: I don;'t work for "When Radio Was", not know anyone who does. But I did want to spread the news.