When I was trying to do my post on the same subject I was racking my brain to try and think of examples. The example I used was about how dating has moved from the bar scene to online. I think the reason I had a difficulty thinking of an example was I focused to hard on something that has gone from analog to digital. Instead you focused on something that was already somewhat digital that has progressed further towards that goal of becoming fully digital. I think your example of radio to podcasts is a perfect example and enjoyed reading it!