All of the programs aired within the block featured content compliant with educational programming requirements as mandated by the Federal Communications Commission via the Children's Television Act. Though the block was intended to air on Saturday mornings, like its predecessors, some CBS affiliates deferred certain programs aired within the block to Sunday mornings, or (in the case of affiliates in the Western United States) Saturday afternoons due to breaking news or severe weather coverage, or regional or select national sports broadcasts (especially in the case of college football and basketball tournaments) scheduled in earlier Saturday timeslots as makegoods to comply with the E/I regulations. Some stations also tape delayed the entire block in order to accommodate local weekend morning newscasts, the Saturday edition of The Early Show and later its successor CBS This Morning or other programs of local interest (such as real estate or lifestyle programs). It was the final children's block to be broadcast only in standard definition., At the beginning of Summer 2009, American Greetings split over two three-hour programming blocks from Cookie Jar Entertainment, a new company replacing DiC Entetainment on June 20, 2008. KEWLopolis ended on September 12, 2009 and was replaced by Cookie Jar TV on September 19, 2009, a new joint venture between CBS and Cookie Jar Entertainment., Cookie Jar TV was an American children's programming block that aired on CBS, originally premiering on September 16, 2006, as the KOL Secret Slumber Party; the block was later rebranded as KEWLopolis (/ ˈkuːlɔːpoʊlɪs / KOO-law-poh-lis) on September 15, 2007, and finally as Cookie Jar TV on September 19, 2009, running until September 21, 2013..