Sealab 2020

Sealab 2020 is a Hanna-Barbera animated TV series that ran from September 9, 1972 to December 2, 1972. It ran thirteen episodes, with an additional three that were left unaired. In the first episode, Deep Threat, the underwater colony faces possible disaster when radiation from some leaking barrels threatens the facility. The episode also reveals that Sealab is powered by a Nuclear Reactor and that the dumping of Radioactive Waste into the sea is no longer practiced as it was in the 1970s with the show taking place in the year 2020.