The Old Time Radio Network
The Old Time Radio Network Library is not a podcast but a great free (or donation) web archive of old radio drama. Shows include: “Space Cadet”, “2000 Plus”, “Dimension X”, “The Green Hornet”, “Tom Corbet”, and “Flash Gordon.”
Shows are in RAM format so you will need the real audio player and the audio quality is dependent on the original source. In the case of “Space Cadet” (one of our favourites) the show was recorded over the air so the quality can be a bit minimal at times, but this just makes the experience of listening more authentic. As David says some of these are pretty cheesy, but are great fun to listen to.