Have you found a workaround to get NPR and Slate podcasts to play on S1?

As you might have read elsewhere, neither Pocket Cast nor TuneIn can play podcasts produced by Slate and NPR (and probably others) through the S1 controller -- “unable to play - connection was lost” error messages. I’ve had conversations with the very nice Pocket Cast folks, even though I added that I wouldn’t be re-subscribing when my current year ran out, but nothing we tried worked. Those seem to be my only podcast-streaming options for these particular shows. And, unfortunately, I can't update my system to accommodate S2 for now.
Maybe you know a secret…?