WASHINGTON, Aug 23 (Reuters) - The U.S. Federal Communications Commission in an unusual move on Wednesday said it would publicly release comments on a bid by an advocacy group to deny the renewal of a licence for Fox Television Stations' (FOXA.O) Philadelphia station. The Media and Democracy Project in July asked the U.S. telecom regulator to deny a licence renewal for WTXF-TV in Philadelphia, saying Fox News aired "false information