Can anyone please help me? I bought my parents an LG LV710 VCR for Christmas. The trouble is I can't get a picture from the Telewest cable box (Explorer 4000DVB) on the VCR. I can hear the audio from the cable channels but all I get is a blue screen. I can receive the terrestrial channels okay via the standard aerials. The connections I have used are all Scart cables: One from the TV (Ferguson T70171RI) to the cable box, one from the cable box to the VCR and one from the VCR to the TV. Does anyone know what I am doing wrong?