I'm afraid Tom Boucher's solution still isn't working for me.
When I'm in the "My Podcasts" tab, it's easy to choose a podcast, select "Settings", and then toggle both the Sort Order and Play Order. If I play the podcast from within the My Podcasts tab, then they play in the order I want (usually, oldest first) - according to however I've set it.
The problem is that in the "My Podcasts" tab it'll play only the episodes of whatever podcast I've selected - it won't go on to other podcasts.
However, when I go to the "My Stations" tab, it seems like any Station (grr, this'd be so much easier to explain if they just stuck with the obvious label "Playlist"), the changes I've made over in the "My Podcasts" tab have no effect. I can set the Station to play in "My Podcasts" play order, which is good - at least then it'll play from one podcast to the next, after all the episodes of a podcast are finished. However, within each podcast, the order seems to always be newest on top, and playing from newest to oldest. Thus far I've been unable to make it play the oldest episode first.
So, suppose I've got two Start the Week episodes: STW April 14, STW April 7. And two Thinking Allowed episodes: TA April 9, TA April 16.
In the "My Podcasts" tab: I can play press play in the Start the Week podcast, and it'll play STW April 7, and then STW April 14. And then it'll stop. I then need to select Thinking Allowed to play those - and it'll play TA April 9, and TA April 16.
But in the "My Stations" tab: it'll play STW April 14, STW April 7, and then keep going to TA April 16, TA April 9. From newest to first (within the podcast). The "play from oldest to newest" setting doesn't carry over to the "My Stations" tab. Of course, if I've just got one episode for each podcast, that's not a big deal, but often there's more than one.
Or am I missing something?