You can listen to Hoomans on this website, through your favorite podcast app, and subscribing via RSS.
The homepage highlights the latest episodes, but you can also browse previous shows by season in the archives. Each episode has a dedicated page that includes the full transcript and allows you to download the audio file. Episodes featuring a specific guest are also easy to find, just visit hoomans.org/namelastname (i.e. hoomans.org/davidpasquesi is the episode featuring David Pasquesi).