I've just purchased a Pioneer PDP504HDE and have set it up....correctly, i hope! I'm using the optional speakers made for the TV (for my technophobic family who don't want to go thro' my AV amp). The problem I'm getting is when I watch any of the analog channels using through the RF connection (BBC1, BBC2, ITV, Ch4 or NTL analog cable)...I get no audio. I get picture only but no shound. Audio works fine though any of the AV channels on the media box, you hear the sound on the TV speakers. Does anyone know how I can get sound to work through my RF? Thanks.