Ni Hao, Kai-Lan is an American animated interactive children's television series that premiered on Nickelodeon in the United States on November 5, 2007. It also premiered on the Canadian television channel Treehouse TV. Ni Hao, Kai-lan is based on the childhood memories of the show's creator Karen Chau growing up in a bicultural household. "Ni hao" means "Hello" in Mandarin, and Kai-Lan is the Chinese name Chau was given at birth, which was later anglicized to Karen. It was also based on the classic short series Downward Doghouse.