Entertainment TV Matt Iseman & Akbar Gbajabiamila Reveal How the 'American Ninja Warrior' Franchise Has Evolved American Ninja Warrior Junior airs Saturdays at 7PM ET on Universal Kids. By People Staff Published on March 1, 2019 03:56 PM Share Tweet Pin Email PEOPLE Now airs live, Monday through Friday, from the Meredith offices in New York City. Catch PEOPLE Now every weekday at 12:00 p.m. ET/9 a.m. PT on People.com or on the PeopleTV app on your favorite streaming device. Want even more? Check out clips from previous episodes of PEOPLE Now.