I have a friend who has had a digital Arial installed and connected to her TV via her VCR and then her ON Digital box. The terrestrial signal on the television is excellent (Even channel 5) yet very poor on the VCR. She can receive all the free view channels but some break up quite a bit especially when the box starts to warm up. I am struggling to work out why this is happening since the TV receives its signal via the other equipment. Can anyone please advise me?