Here it is! The complete Krofft Supershow series from 1976-1978 on 5 Blu Ray discs. This show was hosted by Kaptain Kool and The Kongs from the World of Sid & Marty Krofft in Atlanta. This is both seasons in beautiful quality. Season 1 features the shows: "Wonderbug", "Dr. Shrinker", "Electra Woman and Dyna Girl" plus 2 episodes of "The Lost Saucer".  Season 2 features "Bigfoot and Wildboy", "Wonderbug", and "Magic Mongo" This does not include the Krofft Superstar Hour which some consider its third season.

Please note that these are region free and will play on your Blu Ray / 4K player as well as Playstation. They do not play correctly on XBox. 

From Wikipedia:

The Krofft Supershow was a Saturday morning children's variety show, produced by Sid and Marty Krofft. It aired for two seasons from September 11, 1976, to September 2, 1978, on ABC.

The show was composed of several live-action segments, hosted by "Kaptain Kool and the Kongs", a rock band created for the series. The season-one (1976–1977) segments were Dr. Shrinker, Electra Woman and Dyna Girl, and Wonderbug, plus reruns of The Lost Saucer for the first half of the season (they were dropped when the show was cut from 90 minutes to one hour). For season two (1977–1978), "Dr. Shrinker" and "Electra Woman and Dyna Girl" were dropped and replaced with Bigfoot and Wildboy and Magic Mongo. Each live-action segment was about 15 minutes in length.

Instead of a third season, the show was massively revamped (and moved to NBC) to feature the then-popular Bay City Rollers. Now retitled The Krofft Superstar Hour, Kaptain Kool and the Kongs were replaced by the Rollers, and new live-action segments "Horror Hotel" and "The Lost Island" replaced the older ones.