4 years I think. As a lot of other people here, I got introduced to Naruto by a friend. He read the manga, and always spoiled me. After that I got about 5 friends to watch it, and forced my cousin to watch trough 35 eps( I literally kept him locked in my room). He didn't start liking it until the 20th episode or so, that's when I could unlock the door. He's so stubborn.