Do the shows have the original commercials?
I always skim through each new show as I collect them to ensure they sound fine, but haven’t fully listened to my entire collection yet. I have a collection of over 10,000 hours worth of Old Time Radio shows and I’ve only just begun listening to them! When I find duplicates of shows, I compare each version and keep the one that sounds best or the one that includes the original commercials. My best guess is that about 90% of the shows in my collection contain the original commercials.