17. Ren and Stimpy, 'Ren and Stimpy'
One was the keeper of the cheese. The other was the lemon merchant. Together, they were the weirdest thing children's television had ever seen. Created by mercurial animation genius John Kricfalusi, rageaholic chihuahua Ren Hoëk and simpleminded Stimpson J. Cat were far more than a "remember the Nineties" footnote — their show's blend of Fifties stock music, gross-out visuals, disturbingly adult humor, and a seemingly very thorough acquaintance with mental illness made it appointment viewing for weirdos of all ages.