Is it necessary to have a roof top aerial to receive and record sky tv or do I just need the cabling from the sky dish to box to tv?. I am having trouble with freeview signal to the TV and when I have checked my cables I find that the rooftop aerial goes into sky, then out, then to TV and I wondered why I set it up that way?
Your rooftop aerial has no effect on your Sky satellite service. I don't have a rooftop aerial connected at all. Do you need Freeview for anything specific that's not on Sky? If not, then just unplug the aerial, or plug it directly into the TV.