Its easy to find and read the filenames of old time radio shows. Each series has a list of episode at the bottom of the log page and each episode is identified by the actual filenames. For example:

The above MP3 file would be a broadcast of:

The series "Fort Laramie", broadcast on February 5, 1956 with the episode title "Squaw Man"

The broadcast date is in the format YYMMDD. While the files typically do not have ID3 tags, the filenames help identify the individual episodes and often contain some or many of the following information including Series, Episode number, Episode title, and Airing Date.