I have been in the process of experimenting with transferring the hundreds of 16 inch radio transcriptions I have to digital format. I now have the first - Country Hoedown #48 from 1957, with Eddie Arnold & Judy Lynn - that I consider reasonable audio quality (note that I didn't comment on the content quality).
I will be making these available to ALPB members on the ALPB website as I complete them (and as soon as I figure out how to do that).
All are generally considered to be in the public domain in both Canada and the U.S., but for other countries that status is unknown.
Next, I will be doing a couple of Dragnets.
I think the program links available on the ALPB website are accessible by anyone, including non-members of the ALPB.
For part 15 stations looking for all kinds of good freebies, try