There is war in the Hanna-Barbera universe. We never actually know who is fighting who and for what reason but this was as good as any backdrop to throw in Dick Dastardly and Muttley as a spin-off of the popular “Wacky Races“. Originally meant to be a show with all original characters, the popularity of “Wacky Races” led to a change in the lineup. “Dastardly and Muttley in Their Flying Machines” was probably the more popular of the two Wacky Races spin-offs based on all the merchandising tie-ins and amount of reruns.
“Dastardly and Muttley in Their Flying Machines”, like its sister spin-off, “The Perils of Penelope Pitstop” premiered on CBS on September 13, 1969. The show ran until Jan 3, 1970 with syndicated reruns on some local channels between 1976 and 1982. There were 17 original episodes made. Each episode had a Magnificent Muttley segment wherein Muttley imagines himself as some great character