From what I can see, your external tv arial plug goes into the BT Visiion box, and from there, you connect to your HDTV.
I have heard the BT boxes do not support HD channels yet ( BBC, ITV ) so would I be right in saying that by putting the Vision box into standby, ( not power off ) I can still use the built in Freeview HD tuner in the HDTV itself to watch BBC HD etc.
( The signal just travels through the vision box onwards to the built in freeview hd tuner )
I have heard the BT boxes do not support HD channels yet ( BBC, ITV ) so would I be right in saying that by putting the Vision box into standby, ( not power off ) I can still use the built in Freeview HD tuner in the HDTV itself to watch BBC HD etc.
( The signal just travels through the vision box onwards to the built in freeview hd tuner )