 In 2007, CBS announced that it would broadcast the show over the public airwaves, which sparked controversy with the Parents Television Council (PTC).The PTC did not want the show to be broadcast because it "compelled viewers to empathize with a serial killer"; in response, CBS replaced expletives, cut out bloody scenes and gave the show a TV-14 rating.The eventual premiere of the show on CBS was on February 17, 2008, and was watched by 8.1 million viewers.