it's founding in 1974, of course, "prairie home companion" has been synonymous with one man: garrison keillorted it, wrote it, embodied it with a sense of the people and place he knew in his bones. >> that's the news from lake wobegon, where all the women are strong, all the men are good looking. >> brown: two years ago on this very stage, keillor told me of the magic of radio and storytelling. >> i think there's-- there's a lot of power in listening to one person talking to you. and-- and this should never be underestimated. >> brown: it was keillor who hand-picked his successor, one who'd been performing on the show since age 15 and had listened to it even earlier. >> some of my earliest memories are of hearing garrison keillor's voice in our living room, at a point when i couldn't even tell the difference between his voice and my father's voice. like an authoritative paternal sound coming from the radio. >> brown: thile, who grew up in southern california, was a child prodigy on the mandolin, with groups like nickel creek, and the punch brothers, he grew into a leader of a new generation o