With the cancellation of The Adventures of Superman and the death of George Reeves, Superman took a hiatus from the three-dimensional world that would last for more than two decades. However, the character’s TV adventures weren’t over just yet. In the ‘60s, Filmation produced a series of Superman short cartoons that aired on CBS, and while they didn’t last long, it proved that the character still had life left in him. Then in 1973, Hanna-Barbera Productions debuted The Superfriends on ABC, which began the character’s most prosperous decade in pop-culture.

The show is based on the Justice League comics, where Superman teamed up with other costumed heroes, such as Batman, Flash, Wonder Woman, and Green Lantern. The series, which lasted for 13 years, is a sweet and syrupy love letter to the world of DC Comics designed specifically for juvenile audiences.

The show’s reputation is somewhat divided among fans now, but it helped keep the Man of Steel in the spotlight and led up to his most important adventure of all…