Sadly, the Golden Age of Radio ended when CBS pulled the plug on “Johnny Dollar” and “Suspense” in September of 1962. In the 1970s Hyman Brown began the “CBS Mystery Theater” which ran from 1974 to 1982 and introduced dramatic radio to a whole new generation.
Recently, Carl Amari has produced all new, radio versions of the Twilight Zone. The show is carried on pay radio and on many free stations. It can also be downloaded cheaply from Twilightzoneradio.com. The series features Stacy Keach as narrator and uses many current actors like Jason Alexander (George on Seinfeld) and Jim Caviezel.
Jim French produces a weekly package of shows including some brand new Sherlock Holmes programs. Google “Imagination Theater” to listen to a few for free or to buy some Cds.
The internet has become the new home of all the old radio shows. Do some searches and you will find free access to thousands of hours of radio entertainment.