longest anime

[JackelLord]

It's Detective Conan, then Pokémon (If you consider that an anime) then One Piece.

 

[Rokudaime Hokage Naruto]

Or you could google it and find an easy answer to this question.

 

[7th Biggest OP Fan]

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One Piece is ranked 19, and 8th for currently running. Idk why everyone just assumes its One Piece.

Whats funny is if you combine Naruto and Naruto Shippuden together, it would be ranked 21 with 590 episodes.

 

[Hata Hideaki]

sazae san- 7000+ ep
Pokemon - 850+ep

you are kidding right?! there is no way its 7000+. and i've never heard of that anime too tbh