Complex sentence: It ran for nine seasons, winning two Daytime Emmys and a Humanitas Prize, becoming a rating success, the highest rated program in eight years, the longest-running Saturday morning cartoon and the highest for an NBC program since 1970.
Split into simpler sentences: It ran for nine seasons becoming a ratings success, winning two Daytime Emmys and a Humanitas Prize. It was also the highest rated program in eight years becoming the longest-running Saturday morning cartoon and the highest for an NBC program since 1970.