Original: In 1957 , they co-founded Hanna-Barbera , which became the most successful television animation studio in the business , producing programs such as The Flintstones , The Huckleberry Hound Show , The Jetsons , Scooby-Doo , The Smurfs , and Yogi Bear .
Simplified: The studio made well-known cartoons , such as The Huckleberry Hound Show , The Flintstones , The Jetsons , and Scooby-Doo , as well as the musical film , Charlotte 's Web .