Hanna-Barbera Productions, Inc. (simply known as Hanna-Barbera and also referred to as H-B Enterprises, H-B Production Company and Hanna-Barbera Cartoons) was an American animation studio that dominated American television animation for nearly four decades in the mid-to-late 20th century. It was formed in 1957 by former Metro-Goldwyn-Mayer animation directors William Hanna and Joseph Barbera (creators of Tom and Jerry) and live-action director George Sidney in partnership with Columbia Pictures' Screen Gems television division.
For over thirty years, Hanna-Barbera produced many successful animated shows, including The Flintstones, Yogi Bear, The Jetsons, Scooby-Doo and The Smurfs. Hanna-Barbera was one of the first animation studios to successfully produce cartoons especially for television. In addition to winning seven Oscars, Hanna and Barbera won eight Emmy Awards, a Golden Globe Award, and a star on the Hollywood Walk of Fame, among other merits.
In 1991 & 1992, Turner Broadcasting acquired the Hanna-Barbera studio & library, and began to produce new cartoons under the Hanna-Barbera Cartoons name. Episodes of Captain Planet and the Planeteers were produced for TBS in 1993, renaming it The New Adventures of Captain Planet. More new Hanna-Barbera programs were introduced that were quite different from its old classics, including Wake, Rattle & Roll, Young Robin Hood, Midnight Patrol: Adventures in the Dream Zone, The Adventures of Don Coyote & Sancho Panda, SWAT Kats: The Radical Squadron, Dumb & Dumber, Two Stupid Dogs, Bill & Ted's Excellent Adventures, Fish Police, Gravedale High and Capitol Critters.
In 1995, Hanna-Barbera produced What a Cartoon! for Cartoon Network, an animation showcase series guided by Fred Seibert. The first series based on a What a Cartoon short was Genndy Tartakovsky's Dexter's Laboratory. This spawned a multitude of original series for the network known as Cartoon Cartoons. In 2001, the Hanna-Barbera name began to disappear from newer shows by the studio in favor of the Cartoon Network Studios label. (from Wikepedia https://en.wikipedia.org/wiki/Hanna-Barbera)