This Youtube channel started up a couple months ago and has interviews with Wizards employees, module writers, and DMs like Chris Perkins and Matt Mercer. Looks like it was started by a video journalist who happened to also be a D&D nerd.
Here's the Channel: Dungeon Life
I co-host a Podcast with my friend Robert. We call it... Dungeons & Tangents (iTunes / GooglePlay / RSS )