Curiosity is an American documentary television series that premiered on August 7, 2011, on the Discovery Channel. Each episode focuses on one question in science, technology, and society and features a different celebrity host. Stephen Hawking hosted the premiere episode titled "Did God Create the Universe?", which aired simultaneously on seven Discovery Communications networks: Discovery Channel, TLC, Discovery Fit and Health, Animal Planet, Science, Investigation Discovery, and Planet Green. Season one consists of 16 episodes..