Hi Roy,
I just sent a full reply to your query, the system timed out and all was lost so I shall just send the bones.
Look in your TV manual and on the TV front you will (hopefully) have a socket marked "Audio or Headphones" This is usually a 3.5 mm coaxial socket, it is on both my TVs.
I have an elegant Sony Sender which has,
Power from adaptor at TV end, also charging 2 AA spare batteries for the headset
Auto switch on when headset is put on head.
Tuning and Volume adjust.
Excellent Quality, more intelligible.
Can watch alone if wife not watching, press Mute on TV
Arthur
Arthur, December 2007