Despite what the title implies, This is Radio isn't a radio show at all. It's a video series by Andrew Norton, a Toronto-based journalist, photographer and video producer — and a devoted fan of radio. The idea is simple: interview popular radio hosts and get them to talk about the magic of their medium — on video. So far, Norton has talked to Roman Mars, host of the design- and architecture-focused show 99% Invisible, and Brooke Gladstone, co-host of the New York-based show On the Media. He'll release new ones every couple of weeks, and upcoming guests include Joe Richman, Glynn Washington and CBC's own Jonathan Goldstein. For an introduction to the series, take a look at the teaser video above. We've also included the available interviews below.