Stick a play button or mp3 link for the latest podcast on the landing page; it might help your bounce rate. (instead of me having to subscribe via something or navigate the RSS)
Here is an example that shows their player in action: http://omegataupodcast.net/279-microgravity-research-at-zarm...
You should remove this link and wait for them to add in the embed in the site itself, that way they are "paid" for their efforts with leads towards their services.