Peep and the Big Wide World
It ended on the Discovery children's networks on October 10, 2010. It ended with the end of Ready Set Learn and the replacement of Discovery Kids with The Hub. The program is still offered to public television stations by independent public television distributor Discovery Communications. Since January 1, 2018, the series was distributed by both Discovery Kids and APT. The program was underwritten by the National Science Foundation. Northrop Grumman underwrote the fourth season in 2009.