Gisèle's Big Backyard is a Canadian children's television series, which aired on TVOntario from 2006 to 2019. It is the second spin-off of The Polka Dot Door following Polka Dot Shorts. Hosted and produced by children's entertainer and educator Gisèle Corinthios as a continuation of her earlier series The Nook, the series featured Corinthios, puppet supporting characters and guests entertaining and educating children according to the HighScope curriculum of early childhood education.