Sigmund and the Sea Monsters - Season 1 - Eps 6: The Nasty Nephew
Aunt Zelda brings home her nephew (Leroy) for the weekend. Leroy is determined not to get along with the boys and an attack from Burp and Slurp to a blindfolded Leroy (an initiation to enter the club) didn't help matter. meanwhile Burp and Slurp take Sigmund back to the cave. when Johnny and Scott sneak out to resque sigmun, Leroy follows when he see Sigmund will he tell or keep the boys secret
About Sigmund and the Sea Monsters

Title: Sigmund and the Sea Monsters
First Air Date: 1973-09-08
Last Air Date: 1974-11-23
Status: Ended
Rating: 5.7/10 (from 6 votes)
Language: EN
Seasons: 2
Total Episodes: 29
Network: NBC
Genres: Sci-Fi & Fantasy, Kids, Comedy
Production Companies: Sid & Marty Krofft Television Productions, NBC, Vivendi Entertainment
Synopsis
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.
Cast

Johnny Whitaker
Johnny Stuart

Scott C. Kolden
Scott Stuart

Rip Taylor
Sheldon the Sea Genie

Billy Barty
Sigmund Ooze

Mary Wickes
Aunt Zelda

Sparky Marcus
Shelby

Pamelyn Ferdin
Peggy

Margaret Hamilton
Mrs. Eddels

Sidney Miller
Sweet Mama Ooze

Fran Ryan
Gertrude