Transformers Animated (トランスフォーマー アニメイテッド? Toransufōmā Animeiteddo) is a Japanese/American animated television series based on the Transformers toy line. It was produced by Cartoon Network Studios and animated by The Answer Studio, MOOK DLE., and Studio 4°C. The series debuted on Cartoon Network on December 26, 2007 and ended on May 23, 2009. In Japan, the show debuted on April 3, 2010, on both TV Aichi and TV Tokyo.The series has 42 episodes (two sets of three interrelated episodes make up two 90-minute made for TV movies) across three seasons, with many fanservice references to other Transformers shows.