Question: Heathcliff is a 30-minute Saturday morning animated series based on the American "Heathcliff" comic strip, created by who?
Sentence (from "Heathcliff (1980 TV series)"): It premiered on ABC on October 4, 1980, with a total of 26 episodes produced under the titles "Heathcliff and Dingbat" and "Heathcliff and Marmaduke".
Relevant evidence: No