I have a mixture with three aerial coax cables (one shot gun) from satellite dish to wall, two through the wall to a plate in a back box where two cables terminate then a buried cable up the wall, then a clipped cable in the loft, then run through back of wall cupboard in plastic conduit which extends down to a back box, and terminates to second plate. The last cable clipped to wall and down to living room then through the wall and out through a brushed plate direct to back of TV.
What you need is a description of what you have and want, clearly an aerial cable has two definitions, one a fed cable to and from an aerial and two a cable which goes through the air, I have an aerial cable house to garage to take power into garage.
I had a number of cables going down the corners of rooms, as I came to decorate the room first job was bury the cable, so I had to remove trunking and replace with oval conduit the latter makes it stiff enough to plaster over.
There are methods to change type of balanced feeder, I have used them with ham radio, but never with TV, even methods of getting an aerial feeder through glass without cutting a hole, using inductive and capacitive linking, was often done with car aerial feeds. You could even retransmit the signal and then use a wireless link, although you would need power to the transmitter and likely lose any HD as a result, can even use LAN cables.
But you have not said what you want, server or PC in loft with VNC link to PC at viewing position, all possible but what are you willing to pay?
