Television News NBC decides it needs more 'Heroes,' announces 'Heroes: Origins' 05/14/2007 A spinoff of NBC's popular "Heroes" will air this fall, the network announced in New York Monday. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Grey's Anatomy Heroes