Just found this quote on another site that is meant to help newbies:
What are Podcasts?
"Podcasts are like magazines. You subscribe to a magazine you want to read and whenever a new issue is printed it is delivered to your doorstep."
Um, no. A podcast is like a magazine if, when you opened a magazine, you were forced to begin at page 1 and read every single word on each page in order. And if you were to return to that magazine later, you would be forced to begin reading again at the first word of page 1, or at the exact spot you were at when you left, or at some semi-random location within the rest of the magazine.
Podcasts remain an incredibly inefficient vehicle for the delivery of information.
If you're subscribed, then you get new 'episodes' as they are released.
But that is a specific set of circumstances which not everyone will be in. After that the similarities seem to end.
I still don't have a better way to spend time while taking my morning walk, or routine drives to clients.