love this show. watch it with the girls (4 and 7).
two of my favorite scenes both occur at the evilcon when the family goes to england:
1. perry dresses up as doofenshmirtz' favorite author and when he reveals himself doofenshmirtz screams "you're a platypus!" then perry puts his hat on his head and doofenshmirtz screams "perry tha platypus!". but the look perry has on his face when he realizes he actually has to put on his hat for doofenshmirtz to recognize him is priceless.
2. when they each get into one of the robots at evilcon, queen elizabeth and the dragon, and doofenshmirtz asks perry if they can switch and perry relents. it's just so great how doofenshmirtz whines and asks with a whiny please and follows up with a great thank you very much.
love this show.