The DC3cast starts their march from 1986 to the present day in episode 486.

The DC3cast, Episode 487: Post-Crisis Chronology #2 - "The Legionnaires 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.