Power Rangers is a long-running American entertainment and merchandising franchise built around a live action children's television series featuring teams of costumed heroes. First produced by Saban Entertainment and later by BVS Entertainment, the series took its initial premise and much of its footage from the Japanese tokusatsu Super Sentai franchise. Its first entry, Mighty Morphin Power Rangers, debuted on August 28, 1993, and helped launch the Fox Kids programming block of the 1990s, during which it catapulted into popular culture along with a line of action figures and other toys by Bandai. Despite initial criticism for its action violence targeted for children, the franchise has continued, and as of 2009 the show consists of 17 television seasons, 15 different series, and two theatrical films. The last new series, Power Rangers: RPM, ended on December 26, 2009. In 2010, the original series was rebroadcast in lieu of a new series utilizing footage from the 2009 Super Sentai television series. On May 12, 2010, it was announced that Saban bought back the rights to the franchise and has plans to premiere the 18th season with 20 new episodes on the Nickelodeon network.