I can confirm this. I'm using Ubuntu 11.10 and Banshee as a media player, but I haven't been able to get this podcast to work for a couple of years, and now I really want to get back to listening to some new episodes. I can't update the feed, or even add it. I have added lots of other podcasts, but this won't work. This is another computer than the original one where I first had the problem, so I think the problem is in the feed. Could you guys check the xml-code, because I have a hunch that there's some insignificant little hashtag or something, that throws these players off?
As I mentioned, I haven't had trouble with other podcasts.