Sure, except I never listened to TAL on the radio. We would download a bunch of the episodes into someone's mp3 player (later a phone) and listen to them in the car through a tape deck headphone adapter.

That's the era I lived through, the transition to mp3s and ipods becoming commonplace, and TLA was right there with us. They are called podcasts after all, this is pre-streaming parlance.

I don't think it's fair to be discredit TAL's role in the shift to podcasting just because they were a radio show first.

Serial basically arrived when everyone was streaming everything, that's pretty late in terms of podcasts. Serial didn't even exist in the era of iPods and Zens...