Yup, you're right. I just found this in the rules:
"20. PUBLICITY:
Except for residents of TN and where prohibited by law, winners grant to Sponsor (and confirm such grant in writing upon request) the right to print, publish, broadcast and use worldwide in any media now known or hereinafter known, including without limitation TV, radio, internet, the winner's name, address, voice, biographical data, statement, picture or other likeness (including without limitation posting of name/city/state online at the Web Site within the Winner's board section) without additional compensation, for public relations, advertising and promotional purposes as may be determined by Sponsor, without additional compensation, consideration, review or consent."