This is a question that i've always been curious about when it comes to Phineas and Ferb, what was the first time that you watched the show Phineas and Ferb and do you remember what was the first episode of the show that you saw and what was your opinion of the show after watching it. The first time that i saw an episode of Phineas and Ferb was when i was on one of my trips to Florida in 2009. I was sitting in a hotel room eating my breakfast and i put on the Disney Channel since there wasn't really on at the time, It was Phineas and Ferb, a show that i had heard about and seen commericals for but had never actually watched it yet. It was the episode Unfair Science Fair/Unfair Science Fair Redux (Another Story). I thought that this was a really cool show and very entertaining from beginning to end.. I had planned to try and watch it when i went home however i never did and i only got around to watching every episode of Phineas and Ferb in order to get up to date for the series finale that was airring in June.