Odd one this, I have a TV with the ordinary Red, White and Yellow line inputs, but, instead of a video, I want to feed an audio tuner in. I know that the sockets work, because I can plug my camcorder in, but the moment there's no video signal, the audio inputs go dead. A long shot, can anyone suggest how to fool the TV in to thinking it has a video signal: I've tried a switcher with an amp. in, but that doesn't do it?