Tonton Streaming Heathcliff and the Catillac Cats (1984) S1E102 - Journey to the Center of the Earth

When Cleo's interest is aroused in the subject of Archaeology, the Catillac Cats decide to set out on an archaeologist expedition of their own. They travel through catacombs on a prehistoric adventure that offers Saber-toothed tigers, dinosaurs, and even Cleo and Riff Raff's cavecat ancestors!