Phineas and Ferb is a Disney Channel cartoon series that centers on two step-brothers and their adventures in their backyard during summer vacation. The show had four sneak peeks of the series, on August 17, 2007, after High School Musical 2 on September 28, 2007, after Disney Channel's premiere of Sky High, and another on November 23, 2007 after High School Musical Pop-Up Edition. The series premiered worldwide on February 1, 2008. It is also the first DCOS to premiere simultaneously worldwide.