When does Gilligan's Planet return?

Gilligan's Planet is a spin-off of The New Adventures of Gilligan, based on the premise that the Professor had managed to get the castaways of the original cartoon series off the island. A new character named Bumper appeared as a reptilian alien pet/sidekick for Gilligan and company. It was the last cartoon series that Filmation produced for Saturday mornings.
Gilligan's Planet is a spin-off of The New Adventures of Gilligan. Based on premise that the Professor had managed to build an interplanetary spaceship to get the castaways of the original cartoon series off the island. In many ways, the planet was like the island, but with a strangely colored surface.