How Do I Listen to the Premium Content of Luke's English Podcast?

When you've logged into your a cast plus account, you can see Luke's English podcast premium. You'll see that you have the option to listen now or add show to app. If you if you tap listen now, you'll see a list of all the episodes and you can play them and listen to them. But this is not a convenient way to listen in a browser. That's what happens if you sign if you sign in on a computer. And crucially, how do I get those precious PDFs?