I have mysky HDi, and freeview HD (terrestrial).   So, the sky feeds in through a sat dish, and the freeview comes in via an aerial, so 2 different cables. 

Is it possible to combine the sky hd and freeview hd signal onto a single cable? 

The reason is, that in my second lounge I have just one tv outlet. I'm currently running mysky through this, but, i'd like to add a freeview receiver too. 

(first lounge all good, i have 2 outlets).