This is the first podcast to win the Hugo Award for best fanzine, in 2010. This premier podcast is hosted by Tony C. Smith, about double the length of most pocasts. Each issue has short fiction, a fact piece or interview, sometimes a poem, sometimes a section on genre history. Sometimes they even run a serial in addition to all of the other fiction in each cast. The podcast has a lot of guests. The quality is excellent, the narration professional, and the calibre of the stories is very high, often from celebrated speculative fiction writers.
What really distiguishes this podcast are Tony's exhuberant intros and comments. He has a hilarious regional English accent and is such a likeable, enthusiastic fan of speculative fiction that his excitement is contagious. He does tend to go on a bit long. If you have time he can be very fun to listen to, but as he himself has commented that you are free to fast forward if you like. He has voice talent do all the stories, interviews, etc.
Star Ship Sofa has been going on for several years now, and last I looked they were on episode 173. I started from the beginning with a Michael Moorcock story called London Bone. The narration by MCL Studios was superb, and I was hooked ever since.