| Alt Name: | A Yabba Dabba Doo Celebration: 50 Years of Hanna-Barbera |
| Genre: | Live-action Variety show |
| Producer: | Marshall Flaum |
| Director: | Marshall Flaum |
| Starring: | Tony Danza (Host) Annie Potts (Co-host) Whoopi Goldberg Betty White Sammy Davis Jr. Tommy Lasorda Jonathan Winters Phyllis Diller Valerie Harper Shari Belafonte Joe Ferguson Tiffany |
| Voices: | Greg Burson Henry Corden Don Messick Mel Blanc George O'Hanlon Greg Berg Casey Kasem John Stephenson Jean Vander Pyl Penny Singleton |
| Executive Producer: | William Hanna Joseph Barbera |
| Company: | Hanna-Barbera Productions Turner Entertainment (Tom and Jerry and Droopy Dog) |
| Country: | United States |
| Runtime: | 94 minutes |
| Network: | TNT |
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 American live-action/animated television special written, directed and produced by Marshall Flaum, which premiered on TNT on July 17, 1989.[1] It is hosted by Tony Danza, along with Annie Potts; it also stars Whoopi Goldberg, Betty White, Sammy Davis Jr., Tommy Lasorda, Jonathan Winters, Phyllis Diller, Valerie Harper, Shari Belafonte, Joe Ferguson and Tiffany.
The special is hosted by that night's guest stars 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 broadcast in Dolby Surround sound system.
It covers their years working for the Metro-Goldwyn-Mayer cartoon studio and then the history of Hanna-Barbera, which was set up in 1957. It features footage and clips from the studio's various cartoons along with new animated/live-action wraparounds and a behind-the-scenes segment on the then-upcoming .
The special was dedicated to the loving memory of Daws Butler, who died during its production, and it was also the last television and film project of both Mel Blanc and George O'Hanlon, who died before the special's telecast. Turner Broadcasting System, which owned TNT, would later purchase Hanna-Barbera in 1991.
Among the cartoon characters that appear in this special are the following: