Don't but coax from Argos, even if they sell it. You can buy it at most DIY stores and screwfix.
The way it works is you take a coax from the connector marked RF2 on the back of your Sky box to the magic eye. Place the magic eye on top of the TV. Now take another coax from the magic eye to the aerial connector of your TV. Now you need to switch the power on for the magic eye. (I have posted how to here many times.) Tune the TV to the magic eye. Now whenever you use the Sky remote on the magic eye it will change the channel on the Sky box.
If you want to view different programs in each room however you need the Sky Multi-room service which means installing a second Sky Box.
T
January 2009