An animated television series that was produced by Rankin/Bass Productions (the same that created the Silverhawks, Tigersharks and The Comic Strip) debuting in 1985, based on the characters created by Tobin "Ted" Wolf. The animation was provided by Pacific Animation Corporation, the working name for a collective of Japanese studios prominently including Topcraft, a group who would later go on to form Studio Ghibli. Season 1 of the show aired in 1985 (65 episodes), followed by a TV movie entitled ThunderCats - HO! in 1986. Seasons 2, 3, and 4 followed a new format of twenty episodes each, starting with a five-part story; these aired from 1987 to 1988, 1988 to 1989, and 1989 to 1990, respectively.