Weekend SpecialWeekend SpecialSeason 61983 · 9 episodesEpisodes1The Haunted Mansion Mystery (1)2The Haunted Mansion Mystery (2)3Red Room Riddle4Frank and Fearless (1)5Frank and Fearless (2)6All the Money in the World7The Secret World of Og (1)This much sought after animated mini-series for nostalgic cartoon fans is based on Pierre Berton's best-selling children's book about five young siblings and their pets' discovery of a tunnel beneath their clubhouse floor. Penny, Pamela, Patsy, Peter, Pollywog, Yukie and Earless follow it and explore an underground make-believe world of Og, where little green creatures who can only say "OG" live a fantasy life based on comic books stolen from the world above.8The Secret World of Og (2)This much sought after animated mini-series for nostalgic cartoon fans is based on Pierre Berton's best-selling children's book about five young siblings and their pets' discovery of a tunnel beneath their clubhouse floor. Penny, Pamela, Patsy, Peter, Pollywog, Yukie and Earless follow it and explore an underground make-believe world of Og, where little green creatures who can only say "OG" live a fantasy life based on comic books stolen from the world above.9The Secret World of Og (3)This much sought after animated mini-series for nostalgic cartoon fans is based on Pierre Berton's best-selling children's book about five young siblings and their pets' discovery of a tunnel beneath their clubhouse floor. Penny, Pamela, Patsy, Peter, Pollywog, Yukie and Earless follow it and explore an underground make-believe world of Og, where little green creatures who can only say "OG" live a fantasy life based on comic books stolen from the world above.Season 1Season 2Season 3Season 4Season 5Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 17Season 18