Have just installed a SKY+ box to replace a failing basic SKY box. No subscription, card swapped over OK, including Channel 5. On the old box, RF out 2 was used to feed a Polaroid HDTV in another room I think it was on channel 66. On the SKY + box, the Polaroid set will not work from either RF out 1 or 2. I believe that SKY+ out is on channel 68, but I have tried all the channels on the Polaroid. Any ideas please?