American comedian, actor, and musician in the band Valley Lodge, Dave Hill is immensely proud of his one-quarter Canadian roots. Fuelled by his grandfather's assertion that Canada is the greatest nation on earth, Hill set out years later to discover the truth. The result is his book, "Parking the Moose: One American's Epic Quest to Uncover His Incredible Canadian Roots," and he talks to Steve Paikin about all he learned.