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.