The Mumbly Cartoon Show

The Mumbly Cartoon Show is a Saturday morning animated series produced by Hanna-Barbera Productions and featuring the titular Mumbly, a cartoon dog detective. It was broadcast on ABC from September 11, 1976, to September 3, 1977, as part of The Tom and Jerry/Grape Ape/Mumbly Show. This compilation packaged reruns of the 1975 The Tom and Jerry/Grape Ape Show with Mumbly as a new component.

Mumbly is a private eye dog in a trenchcoat, who worked with a human detective, Chief Schnooker, to catch criminals who often sported alliterative names. 16 episodes were produced. Mumbly was voiced by Don Messick, and Schnooker by John Stephenson.

The show was not a ratings success and only lasted for one season. However, in the next season, Mumbly was included in Hanna-Barbera's crossover show, Laff-A-Lympics, on the villainous "Really Rottens" team. Mumbly was not a villain in his earlier show, but the character was a substitution for the actually-villainous Muttley from the 1969 series Dastardly and Muttley in Their Flying Machines, who couldn't appear on Laff-A-Lympics as those characters were co-owned by Heatter-Quigley Productions.

The show was also broadcast in foreign countries like West Germany in 1982, Yugoslavia circa 1985/1986, France in 1978, Poland circa 1983/1984.