Yabba Dabba Doo! The Happy World of Hanna-Barbera

    Celebrates the 20th anniversary of the Hanna-Barbera partnership.
    Documentary
    Animation
    • Runtime: 2 hours
    • Release Date: November 24, 1977
    Yabba Dabba Doo! The Happy World of Hanna-Barbera
    Gene Kelly
    Yabba Dabba Doo! The Happy World of Hanna-Barbera
    Lorne Greene
    Yabba Dabba Doo! The Happy World of Hanna-Barbera
    Cloris Leachman
    Yabba Dabba Doo! The Happy World of Hanna-Barbera
    Jonathan Winters