I’m gonna go out on a limb here and say that Mark Malkoff is probably the most and best prepared podcast host in the world. If you’ve ever listened to his show, “The Carson Podcast,” you know what I’m talking about. With its singular focus on the career of the late Johnny Carson, host of “The Tonight Show with Johnny Carson” – and Mark is always careful to say the show’s full name, so I will be, too—“The Carson Podcast” is the essence of a great podcast.