SKy TV but want to ADD a freeview box..?

I have Sky TV using a dish but feed other rooms in the house with a splitter, however i would like to buy a freeview box for my daughters room. Can I plug in the sky feeder arial into the freeview box and use that to allow her to watch other programs while we watch the sky.. or if not how can i do this without getting another ariel on my property. any advice would be most appreciated