Over the next three decades, the studio produced many successful animated shows, including The Flintstones, Jonny Quest, Scooby-Doo, The Smurfs, The Yogi Bear Show, The Jetsons, The Huckleberry Hound Show, Top Cat, Wacky Races, The Quick Draw McGraw Show, Tom and Jerry, Space Ghost, and The Magilla Gorilla Show, among others. The studio also produced several theatrical feature films and theatrical cartoon shorts along with a number of television specials and televised movies, both animated and live-action. While Hanna and Barbera's theatrical work awarded them seven Oscars, their television productions have earned the company eight Emmys and also been given a star on the Hollywood Walk of Fame. In the mid-1980s, the company's fortunes declined somewhat after the profitability of Saturday morning cartoons was eclipsed by weekday afternoon syndication.
In 1991, the company was purchased by Turner Broadcasting System, who began using much of the H-B back catalog to program the Cartoon Network the following year. Both Hanna and Barbera went into semi-retirement after Turner purchased the company, continuing to serve as ceremonial figureheads for and sporadic artistic contributors to the studio. In 1994, the company was renamed Hanna-Barbera Cartoons, and in 1996, Turner merged with Time Warner. By the time of the merger, Turner had turned Hanna-Barbera towards primarily producing new material for Cartoon Network, including the successful Cartoon Cartoons shows such as Dexter's Laboratory, Johnny Bravo, Cow and Chicken, I Am Weasel, The Powerpuff Girls, and many others.
With William Hanna's death in 2001, Hanna-Barbera was absorbed into Warner Bros. Animation, and Cartoon Network Studios continued the projects for Cartoon Network output. Joseph Barbera remained with Warners until his death in 2006. H-B is currently an in-name-only unit of Warner Bros. Animation and its name and studio is today used only to market properties and productions associated with Hanna-Barbera's "classic" works such as Top Cat.