Release of the "'Robotech Defenders'" and "'Robotech Changers'" model lines caused problems for media company Harmony Gold USA, who licensed the North American video rights to the Japanese Macross anime series, combining it with two other series to produce an 85 episode series they hoped to market direct to video. Since Revell was already distributing the models, Harmony Gold could not support the show with merchandising. In the end, both companies decided to enter into a co-licensing agreement and the name Robotech was eventually adopted for the syndicated television show that the home video line had transformed into.