Dave’s Obsession of the Moment: PHINEAS AND FERB’S Subtle Continuity and Worldbuilding Posted on May 10, 2015 by doggans For a show where everything is reset every day, the Tri-State Area stays remarkably consistent. Phineas and Ferb on Amazon Instant! Thanks to Dave’s patrons for supporting this post! You can help out on Patreon! Follow Dave on Twitter!