Kids' WB was relaunched as an online network on April 28, 2008, a few weeks before the television block was replaced by The CW4Kids. Until it was discontinued on May 17, 2015, the service allowed viewers to stream live-action and animated content, including "Looney Tunes" and programs from Hanna-Barbera and DC Comics. The website operated in different "zones" based on programming type: Kids' WB, Kids' WB Jr. (for shows aimed at younger children), and DC HeroZone (for action-oriented animated series). It was also available on Fancast, where it featured "Looney Tunes" shorts and full episodes of television series such as "Scooby-Doo", "The Flintstones", and "The Jetsons".