Anybody got any experience of this box. Q. Somebody I know does not have a TV. If the box is tuned in my house and they have the box, do they need the onscreen graphics to navigate the channels to get the sound and switch between Digi Terrestrial and DAB ? or can they just push the buttons on the remote to select the audio channels. They are looking for a economical receiver and the box does have digi terrestrial with none of the bit reduction of DAB but would also give you the local radio stations. I ask the question here since only Argos seem to stock it so one can't inspect it working. Any comments.