The Flintstones - The Complete Fourth Season (1960) for $17.71

The Flintstones was still very popular when the fourth season opened with what may the most famous single episode: "Ann-Margrock Presents." Ann-Margaret, who had become an overnight sensation in "Bye Bye Birdie" (1963), provided the voice for her caricature. During the 1962-63 season, the series had made cartoon history when Wilma became pregnant. According to Joe Barbera, Wilma and Fred were originally going to have a son, Fred Jr., but potential profits from doll and toy sales changed the offspring to a girl.