<page_title> Heroes (U.S. TV series) </page_title> <section_title> Ratings </section_title> <table> <cell> 3 <col_header> Season </col_header> </cell> <cell> September 22, 2008 <col_header> Season premiere </col_header> </cell> </table>
Heroes (U.S. TV series) season three began in 2008.