This was actually two series. Until 1961, it presented Harveytoons, led by Casper the Friendly Ghost, originally produced by Famous Studios. From 1961-62, it showcased Beany & Cecil cartoons produced by Bob Clampett.
"Beany and Cecil" appeared during an era in which child psychologists were predicting devastating results from the effects of television violence. This popular cocktail-party subject was made light of in at least two episodes. In "Beany Meets the Boo Birds", after whacking Cecil on the head with a hammerhead shark, one Boo Bird turns to the camera and nonchalantly asks, "Do you think there's too much violence on TV?" And, in "Invasion Of Earth by Robots", mechanical alien housewife Venus the Meanest - who's actually visiting Earth for a picnic with her rambunctious toddler, Venice - comments to a friend, "When it comes to violence, Venice doesn't need TV to give him any ideas!"
All four crew "men" on board the Leakin' Lena had ladyloves, who appeared in the series from time to time. Cecil's "she serpent" girlfriend was Cecilia McCoy; Beany's sweetheart was Baby Ruth; Captain Huffenpuff was in love with "Ida, sweet as apple cider"; and Crowie's main squeeze was Bridget Crow-dot (pronounced "crow dough").
After "officially" ending its run in 1962, "Beany and Cecil" became a fixture of ABC-TV Sunday morning cartoons for several more years.