Overview: Challenge of the GoBots is an American animated series produced by Hanna-Barbera, based on the Gobots toy-line released from Tonka. The show originally debuted in animated form as a five-part miniseries, which aired in syndication from October 29 - November 2, 1984. A regular series followed the next year, premiering on September 16, 1985 as part of the new weekday/weekend morning programming block called The Funtastic World of Hanna-Barbera. The series was later rerun on the USA Cartoon Express.
I remember them but never watched them. By the time they came on the scene I was already in my early teens and the Transformers were pretty entrenched in my head for the genre.