Hi,
Where were you on September 11, 1976?
I may not have been an earthling then (that time started in July 1981), but on this Saturday morning there were several new Hanna-Barbera cartoons seen on ABC and CBS.
On ABC, there was The Tom & Jerry/Grape Ape/Mumbly Show (with Mumbly, the Muttley-inspired character, as the only totally 'new' character in the block as the other two shows were reruns from '75), Jabberjaw (a Great White shark voiced by Frank Welker who speaks with the mannerisms of The Three Stooges' Curly) and The Scooby-Doo/Dynomutt Hour.
The Scooby episodes of the year were all new. But the block's other star seemed to be a highlight as well: Dynomutt, the sometimes malfunctioning robotic dog whose Frank Welker-guided vocal mannerism recalls that of Bullwinkle J. Moose's, was the creation of H-B story writers Joe Ruby and Ken Spears (who would leave H-B in 1977 to start their own company), as was Jabberjaw. However, Dynomutt's sidekick was the Blue Falcon (nee Radley Crown), voiced by Gary Owens.
The lone CBS offering by H-B was the less-pretentious yet still Scooby-lite Clue Club, notable only for its scenes of the show's two dog characters, Woofer and Whimper, to be reused in the next season's Skatebirds.
~Ben