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

Hanna-Barbera's 50th: A Yabba Dabba Doo Celebration is a American live-action/animated television special which premiered in July 17, 1989 on TNT.

The special was a celebration between the partnership of William Hanna and Joesph Barbera.

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