Complex sentence: Goo is the name of many garbage planets in the original Transformers television series, debuting in the season 3 miniseries "The Five Faces of Darkness".
Split into simpler sentences: Goo is the name of many garbage planets in the original Transformers television series, debuting in The Five Faces of Darkness miniseries in season three. It appears in the season 3 mini-series, "The Five Faces of Darkness".