I have picked up a second hand sky plus box up for the MH The question is do i need a card in it to view free sky channels ?? i've tried it tonight and it's saying contact sky as there is a problem with my card. There are pre recorded programs on the box and it won't let me view them either !!!! I have a Road pro auto-skew dome fitted so there is no problem with the satellite. As anyone had the same problem ??