Coax aerial signal over Ethernet?

G

Guest

Guest
In my house the roof aerial socket is downstairs. I'd like to put in a BT Vision box in the bedroom on the floor above.
I have Ethernet up there but need to get the signal from the roof aerial.
Is there a way to plug coax through the electric circuit, much like the Ethernet extender thing you get to enable Internet coming out of your plug sockets?

I can't drill holes in walls or modify the current aerial wiring so I'd need to be able to do it a clever way.