The DC3cast takes it back to the beginning in episode 503.

The DC3cast, Episode 504: Post-Crisis Chronology - "The Man of Steel" 1-3

The DC3cast is a lively discussion about DC Comics, hosted by three Multiversity Comics (multiversitycomics.com) staffers - columnists Vince Ostrowski and Zach Wilkerson and editor Brian Salvatore.  Discussions, interviews, reviews, games, and more can all be found on the DC3cast.