Simpsons creator Matt Groening says Fox News threatened to sue the makers of his popular animated series over a spoof of its news ticker. Interviewed on NPR’s Fresh Air, Groening said the news channel backed down because it would have meant suing its sibling channel, Fox Entertainment. The episode showed a rolling news ticker at the bottom of the screen that read, “Pointless news crawls up 37 percent … Do Democrats cause cancer? Find out at foxnews.com … Rupert Murdoch: Terrific dancer … Dow down 5,000 points … Study: 92 percent of Democrats are gay … JFK posthumously joins Republican Party … Oil slicks found to keep seals young, supple …” Fox News, however, denied the charges. “We are scratching our heads over here. We liked the cartoon,” a Fox News spokesman told The Independent.