I searched the forum for any history on this topic but the max was one year. Forgive me if this is a re-post.
I'm a big fan of listening to all kinds of podcasts on my smart phone using , and searched for fly fishing and I came across an Orvis Fly Fishing podcast. It looks like the podcast has been going on since 2010.
In anycase, you can find it by searching within the BeyondPod
BeyondPod app or finding the podcast via the Orvis website: http://www.orvis.com/s/fly-fishing-guide-podcasts/4047
I found a few other FF podcast out there but they seem to have dropped off since their most current podcast is a few years back.
Let me know what you think. Enjoy!