Hi Folks! First time poster to this forum. I would like to construct a small and inexpensive radio transmitter, which I can attach to some external port on my TV receiver, and which will transmit the sound component of the current audio/video display on the TV to receiving earphones worn by me. I don't want it to interrupt the broadcast transmission of the sound signal into the room. Does anyone know of plans for such a device or any impediment to it?