Hanna-Barbera's 50th A Yabba Dabba Doo Celebration title

Hanna-Barbera's 50th: A Yabba Dabba Doo Celebration (also known as A Yabba Dabba Doo Celebration: 50 Years of Hanna-Barbera) is a 1989 live-action/animated televsion special. Originally airing on TNT, the special featured hosts Tony Danza and Annie Potts celebrating 50 years of William Hanna and Joseph Barbera's partnership in animation. This is the first animated project to be presented in Dolby Surround sound system.

Covered are Hanna and Barbera's years working for the Metro-Goldwyn-Mayer cartoon studio, and then the history of Hanna-Barbera Productions Inc., which was set up in 1957. Featured are clips from the studio's classic works, along with new animated/live-action material, and a behind the scenes on Jetsons: The Movie.

The special was dedicated to the memory of Daws Butler, who died during this production. It was also the last television and film project for Mel Blanc and George O'Hanlon, who died seven days before the special's telecast.

Cartoon characters

Among the cartoon characters that appear in this special are the following: