I have used a niles tva20 in my bedroom to switch between whole house audio and the tv in the bedroom. I have gone out and bought a new lcd tv and it does not have variable audio output so I have no way of controlling the volume to the tv. Does anyone know of a box that would be similiar to the niles but allow controlling of the volume. I tried sending audio out of the tv to a receiver and then out to the niles but the receiver volume control would not adjust the level out of receiver. I just need to control the volume of the tv audio going to the niles some how. Thanks for any help and suggestions.