How do I split the signal from a sky dish to work freeview as well?

I live in a flat with a communal dish with 1 cable from the dish which acts as a sky cable and an aerial. How do I split the signal to work a sky box and a freeview box at the same time?How do I split the signal from a sky dish to work freeview as well?
im not sure that you can, you can fit an amplifier/splitter but that will limit you to watching the same channels on both tvs ( i assume thats why your trying to split the signal you havent said) freeview only needs an aerial signal but sky will carry more channels anyway, hope ive helped

bob hair