This episode ends the Challenge of the SuperFriends show.
Like most of the SuperFriend shows, this series only lasted 16 episodes.
Giganta's origin story is completely different that what's shown in this episode.
Her real origin story involves an evil scientist named Professor Zool artificially evolving an ape named Giganta into the red haired villain.
She was also a nemesis for Wonder Woman not Apache Chief.
Even at his full height, it would be impossible for Apache Chief to place the bear where he does, behind the furthest mountain
When Captain Cold freezes the Super Friends in ice, their positions are (from left to right) Apache Chief, Aquaman, Black Vulcan, Robin, Batman, Superman, Flash, Green Lantern, Wonder Woman, Samurai & Hawkman ...
but when we see them flying through space on their way to Saturn not only are they suddenly standing shoulder to shoulder, their placement is... Flash, Green Lantern, Samurai, Apache Chief, Black Vulcan, Robin, Hawkman, Wonder Woman, Batman & Superman and Aquaman is missing entirely.
Also when we first see the Super Friends frozen in their “ice bullet” the rounded part is nearest Superman on the left side but when we see them in space the rounded part is on the right and the Super Friends are facing the camera.
In order to have the round part on the right we'd have to be seeing the Super Friends from the back.
Two of the tapes Sooba, Rayno & Manatoo view are actually clips from previous episodes, “The Giants of Doom” & “Revenge on Gorilla City”