Canal do Otario is a Brazilian YouTube channel that focuses on providing entertaining and educational content for children. The channel features videos about science, nature, art, music, and more, all designed to help children learn and have fun. The channel also features interviews with experts in various fields,
From Wikipedia
Canal do Otário is a Brazilian YouTube channel and website, created on February 3, 2012, by an anonymous user, whose host is a popular internet figure in Brazil, going by the name of "Otário Anonymous”. Otário investigates false advertising and rants about it on YouTube with a paper bag over his head.