Johnny N......isn't the only smart cartoon dude...................these guys are smart as well.............but their sister always ruins things..............."MOM........Phineas and Ferb are building a rocket to mars!!"

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2. Phineas and Ferb

   American animated series
3. 8/10IMDb8.1/10TV.com
4. Phineas Flynn and his stepbrother, Ferb Fletcher, are determined to make every day of their summer vacation fun. They try building a full-scale roller coaster, becoming musicians, building a backyard beach, and… More
6. First episode date: August 17, 2007
7. Final episode date: June 12, 2015
8. Theme song: Today Is Gonna Be a Great Day