hi, i currently have a virgin box built into the fireplace wall in my living room feeding the telly above it, i'm building an extention and want to fit another telly in there so that the kids can watch something different to us, i'm not sure how to best do it, with virgin do i/can i connect into the back of the box and run a new cable to the extention and use another remote to change channels, or is there any mileage in changing to sky and if so would the second cable go from the box under the telly or from the dish, many thanks