Phineas and Ferb

This is a kid's cartoon show about brothers, Phioneas and Ferb, and how they spent their summer vacation.

Every episode has them coming up with some crazy invention that they build with the help of their friends.

There is also a side story about their pet platypus, Perry, who is a secret agent battling the (not so) evil Dr. Doofenschmirtz.

It's one of my favourite cartoons. I've probably watched the series three times by now.