'Phineas and Ferb' creators Dan Povenmire and Jeff 'Swampy' Marsh reveal the ultimatum that made the show fans love It's a story of creative endurance, representation, and inspiration.

For more on Phineas and Ferb from Povenmire and Marsh, check out Say More 's full interview on YouTube. How to watch: Phineas and Ferb Season 5 is now streaming on Disney+.

The revival of ‘Phineas and Ferb’ has started well for Disney, and the show’s creators think they know why viewers were glad to revisit the show.

Disney's Phineas and Ferb has returned for Season 5 and these are the best episodes for a trip down memory lane.

Have you ever wondered why there are *104* days of summer vacation? "Phineas and Ferb" creators Dan Povenmire and Jeff "Swampy" Marsh reveal the answer.

Phineas and Ferb is officially returning to the Disney Channel after wrapping its fourth season in 2015. The revival has been greenlit for 40 episodes, split into two seasons. Vincent Martella ...

Phineas and Ferb creators Dan Povenmire and Jeff "Swampy" Marsh spoke with Bleeding Cool about reuniting the cast, favorite moments, and more.

Creators Dan Povenmire and Jeff “Swampy” Marsh discuss Doofenshmirtz and Candace going to the same therapist and the return of Meap the alien.

But they’re pretty glad that “Phineas and Ferb” is the one that’s legged out, both for the “goodness” it brings to the world and the example her character sets.

Phineas and Ferb creators Dan Povenmire and Jeff “Swampy” Marsh opened up about how they come up with those 'Inators' inventions.

When “Phineas and Ferb” first premiered in August 2007, Martella was only 14. He’s 32 now, but Phineas is still a kid on the show.

When “Phineas and Ferb” first premiered in August 2007, Martella was only 14. He’s 32 now, but Phineas is still a kid on the show.