Bryan Cranston is a guest on Rich Eisen's podcast from 7/21/2011
They get into a great in-depth discussion of his character, and mentions his role in The X-Files that led to him being cast in BB. Also touched upon is his role as Tim Whatley DDS in Seinfeld, anti-Dentitism, and regifting.
http://itunes.apple.com/ca/podcast/id391844217
Oh and MMF, you can find out how much time has passed during the 3+ seasons of the show.