Phineas and Ferb is an American animated musical-comedy television series created by Dan Povenmire and Jeff "Swampy" Marsh for Disney Channel and Disney XD. Produced by Disney Television Animation, the series was originally broadcast as a one-episode preview on August 17, 2007, and again previewed on September 28, 2007, the series officially premiered on February 1, 2008, on Disney Channel, running until June 12, 2015.
The program follows Phineas Flynn and his stepbrother Ferb Fletcher, who are between eight and ten years old, on summer vacation. Every day, the boys embark on some grand new project. These are usually unrealistic given the protagonists' ages (and are sometimes downright physically impossible), which annoys their controlling older sister Candace, who frequently tries to reveal their shenanigans to her and Phineas' mother, Linda Flynn-Fletcher, and less frequently to Ferb's father, Lawrence Fletcher. The series follows a standard plot system; running gags occur in every episode, and the subplot almost always features Phineas and Ferb's pet platypus Perry the Platypus working as a spy named "Agent P" for OWCA (the Organization Without a Cool Acronym) to defeat the latest scheme of Dr. Heinz Doofenshmirtz, a mad scientist driven largely by a need to assert his evilness (although he is not especially evil and has a good heart in some situations). The two plots intersect at the end to erase all traces of the boys' project just before Candace can show it to their mother, which usually leaves Candace very frustrated.
Povenmire and Marsh had previously worked together on Fox's The Simpsons and Nickelodeon's Rocko's Modern Life. The creators also voice two of the main B-plot characters, Dr. Doofenshmirtz and Major Monogram. Phineas and Ferb was conceived after Povenmire sketched a triangular boy – the prototype for Phineas – in a restaurant. Povenmire and Marsh developed the series concept together and pitched it to networks for 16 years before securing a run on Disney Channel.