Sigmund and the Sea Monsters was an American children's television series that ran from 1973 to 1975, produced by Sid and Marty Krofft and aired on Saturday mornings. There were 29 episodes spanning two seasons.

Sigmund and the Sea Monsters - watch online: streaming, buy or rent

Currently you are able to watch "Sigmund and the Sea Monsters" streaming on Amazon Prime Video.

Sigmund and the Sea Monsters (1973)

S1 E1-The Monster Who Came to Dinner