Just to throw another idea in for you....

I have my S9 in the front room, along with a Virgin STB and a DVD player.

I have the three boxes connected to TV by HDMI cables.

The three boxes are connected via Scart to a 3 way Scart Switch. I have a 5,8Ghz wireless sender connected to the scart output with the other "end" plugged into my wall mounted TV in the other room.

This means I can watch S9, Virgin or DVD in the other room simply by selecting the appropriate input on the scart switch.

Does that make sense?!!!

Works well for me, as we can watch all three boxes without having any STB's cluttering up the wall mounted telly