Catch up TV on Mountain Gorilla. Watch the latest and all other episodes of Mountain Gorilla now online, broadcast on ABC1. Catch up on your favorite ABC1 TV show: Mountain Gorilla. Replay tv on its best! The largest gorilla family in the world is starting the perilous journey down to feed on fresh shoots of bamboo. Meanwhile, on the other side of the Rwandan volcanoes a young gorilla has been deserted by her mother.