It helps that the app I use kind of makes the entire thing pretty painless.
What worries me though is that several of the podcasts I subscribe to, but haven't gotten around to listening to yet are dead and thus the feeds are dead, and some of the feeds only show the most recent n podcasts, so I'm missing out on lots of the earlier shows.
Podcasts and old radio shows now keep me entertained when I can't watch. I think of them basically like on-demand tv. There's more available than I could possibly ever listen to.
For the topic area I'm interested in, it honestly doesn't matter at all if the show is old.