I made audio cassettes of all the episodes way back in the early 70's. I clearly remember taping the tiny mike up on a stack of encyclopedias in front of the TV speaker. I used 120 minute cassettes so I wouldn't have to turn the tape around. I'd listen to them again in the evenings, trying to remember everything that was happening. Boy, that takes me back.
Yep, me too, boy are we old.