User blog:RRabbit42/What makes Phineas and Ferb a "must see" show for you?

In the recent issue of the Tri-State Gazette, I wrote about the moment that Phineas and Ferb went from a good show that I liked to a "must see" show that I never miss. (Well, other than the episodes that play while I'm at work.)

What is it about this show that makes it special for you?