Sigmund and the Sea Monsters is an American children's television series that ran from September 8, 1973, to October 18, 1975, produced by Sid and Marty Krofft and aired on Saturday mornings. From Wikipedia
Known for creating iconic shows like 'H.R. Pufnstuf' and 'Land of the Lost' with his brother Sid, Krofft leaves a lasting legacy in children's television.