Toonzai (formerly known as The CW4Kids from May 24, 2008 to August 7, 2010, or stylized as TOONZAi) was an American Saturday morning cartoon children's television block that aired on The CW from May 24, 2008 to August 18, 2012. The block was created as a result of a four-year agreement between 4Kids Entertainment and The CW. The original name for the block from May 24, 2008 to August 7, 2010, The CW4Kids (stylized as THE CW4K!DS), was retained as a sub-brand through the end of the block's run in order to fulfill branding obligations per 4Kids Entertainment's contract to lease The CW's Saturday morning time slots. The name is a portmanteau of "toon" and the Japanese term banzai, reflecting the majority of anime programming on the block. The block was replaced by Saban Brands' program block Vortexx, which debuted on August 25, 2012. On April 11, 2013, the Toonzai website redirected to the Vortexx website. Since October 4, 2014, none of 4Kids' shows air on broadcast television anymore (with the exceptions of Pokémon, Yu-Gi-Oh!, TMNT, and Sonic X), as Vortexx ended its run on September 27, 2014, and before being replaced by Litton Entertainment's One Magnificent Morning. History Origin and launch On October 2, 2007, The CW announced due to a joint decision between the network's parent companies Time Warner and CBS Corporation that it would discontinue the Kids' WB programming block, due to the effects of children's advertising limits and competition from cable television, and sell the programming time to 4Kids Entertainment. Kids' WB ended its run on The CW on May 17, 2008 (Kids' WB, like The WB Television Network that the block originated, then relaunched as an online-only video on demand service). 4Kids Entertainment took over programming the block on May 24, 2008, premiering under the name The CW4Kids. In addition to programming the block, 4Kids also handled responsibilities for its content and advertising revenue. At the time of the block's launch, 4Kids also programmed the competing 4Kids TV block for Fox, until that network nullified its time leasing agreement with 4KidsTV on December 27, 2008, due to a dispute between Fox and 4Kids involving 4Kids' failure to pay the network for its time lease, and the network's inability to maintain guaranteed clearances for the block, due to difficulties getting Fox affiliates and stations that would be used as default carriers of the block in markets