The Fairly OddParents, Nickelodeon
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Okay. There's this kid named Timmy Turner, and he has a pair of fairy godparents, a married couple named Cosmo and Wanda. Cosmo's pretty stupid (and probably the funniest character on the show). Also the two of them spend a lot of time disguised as goldfish. And sometimes we see other fairies, or even fairy world. Anyway, Cosmo and Wanda grant Timmy wishes. And there's this evil babysitter named Vicky. And a nutty school teacher named Mr. Crocker, who wants to prove to the world that fairies exist. And there are some other characters, like Timmy's parents, and his friends (mainly Chester and A.J.). And lots of weird, silly things happen all the time. It's fairly amusing and wacky, but I don't watch it much at all, I'm afraid. Definitely worth watching every now and then, though.
There've been at least a few specials based on the series, as well as a live-action movie, Grow Up, Timmy Turner!.