Kyōryū Sentai Zyuranger is a Japanese tokusatsu television series and the sixteenth installment in the long-running Super Sentai metaseries of superhero programs. Produced by Toei and Bandai, it aired on TV Asahi from February 21, 1992 to February 12, 1993, with a total of 50 episodes replacing Chōjin Sentai Jetman and was replaced by Gosei Sentai Dairanger. It was the first Sentai series to have a regular Sixth Ranger, and the first to introduce the concept of sentient, living mecha, a theme that has been used frequently in the franchise ever since. It was also the first Sentai series to be adapted into an installment of the American Power Rangers series. Footage from all 50 episodes was extensively used for the first season of Mighty Morphin Power Rangers. The core Zyuranger costumes were used in all three seasons of Mighty Morphin Power Rangers and were used as the original Power Rangers costumes while the Dragon Ranger costume was adapted into the Green Ranger's costume and was used throughout Season 1 and in early Season 2. The title Toei gives this series for international distribution is Galaxy Rangers.

Chojin Sentai Jetman is a Japanese tokusatsu television series produced by Toei Company. It is the fifteenth entry of the Super Sentai metaseries, following the previous series Chikyu Sentai Fiveman. The series aired on TV Asahi on February 15, 1991, to February 14, 1992, with a total of 51 episodes replacing Chikyu Sentai Fiveman and was replaced by Kyōryū Sentai Zyuranger. It was the last Sentai series until Ressha Sentai ToQger to not get adapted into a Power Rangers series. It was also the first series to have a third robot, Tetraboy and paid tribute to the anime series Science Ninja Team Gatchaman. The international English title is listed by Toei as simply Jetman.