Format
The first half of the hour was an episode of Dino-Riders; the second half an episode of RoboCop. Reruns of the 1981 Spider-Man cartoon (alternating with Spider-Man and His Amazing Friends) were aired, making the program 90 minutes long in the US. The block is notable for debuting the X-Men pilot, X-Men: Pryde of the X-Men during its second season. Various other Marvel cartoons began airing during the show's second season as well.
To coincide the airings of various shows on the program, Marvel produced a few comics based on some of the shows; In 1989, a Dino-Riders comic series was published by Marvel. Also in 1989, Marvel reprinted the original one-shot comic Spider-Man and His Amazing Friends, first published in 1981, retitled as Marvel Action Universe #1; In 1990, Marvel published another one-shot comic titled X-Men Animation Special, an adaptation of Pryde of the X-Men that featured cell animation from the cartoon rather than original art; Again in 1990, Marvel published a RoboCop comic adaption, which lasted two years.
Read more about this topic: Marvel Action Universe