I haven’t had time to listen to the episode itself but from your description it doesn’t sound too dissimilar to what other podcasters are doing - where an episode is recorded and then a link to it is posted as an alert as well as in the hope it might spark a discussion. In that case our standard guidelines may be most appropriate, where you create a “ThinkingElixir Podcast” thread and then post links to each episode in that thread and include any points of discussion you want to raise 
(you can link to individual posts in the thread as you can get the URL for a post by clicking on the timestamp in the top right corner of each post).
If you’d like to involve forum members in a more collaborative way (as per my post above) then we could look at what other options might be worth exploring. 1 and 2 in my post in particular could work well - perhaps in a video format (that also works as audio-only). However it’s something that would need to be made clear in the first post of the thread, i.e. that posts made in the thread may be reproduced in a video or discussed in a podcast - but let us know if this is something you want to try as we can help with the details. Perhaps you could have a main thread, and then dedicated threads for big topics that warrant such a collaboration? Again, just let us know if this is something you want to explore.
If you have any other ideas let us know too! 
