Some months ago I discovered a weekly podcast entitled The Benji & Nick Show. It mainly reviews old Doctor Who, but also branches out into lots of other old television. The hosts are Nicholas Briggs (voice of the Daleks) and Benji Clifford (of 5WF fame, later sound designer for Big Finish). They speak in a candid but reasoned manner about a wide range of media. Sadly, they announced some weeks ago that their series will come to an end in September.
Still going is The Delta Flyers, which started last spring but which I only discovered a week ago. It is an episode-by-episode commentary on Star Trek: Voyager by two of its principal cast – Robert Duncan McNeil (Lieutenant Tom Paris) and Garrett Wang (Ensign Harry Kim). Their discussions include personal recollections from the time as well as insights from their later careers. There’s even a bit of poetry thrown in. Currently they have just finished the third season, which means with one episode per week they should finish exactly two years from now.