an Entity references as follows:
The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II is a 1979 live-action/animated television special produced by Hanna-Barbera Productions which aired on CBS on October 12, 1979. It is a sequel to the 1977 special Yabba Dabba Doo! The Happy World of Hanna-Barbera.