Plus Combiner

You must set the Digiboxes' RF outlet channels so that they don't interfere with each other.

It's covered in detail in our "Piping TV Around the House" eBook and it's mentioned on our Sky Digital FAQ page.

I'll explain it in simple terms here:

On your Digibox, press [setup] 401 [select] then (I think) 4 to get the RF Outlet menu on screen. Press these buttons quickly.

For HD boxes press [setup] 001 [select] .

Note the RF outlet channel number (It's "68" by default).

Do the same for the Sky+ box and note the RF channel number. Change ONE of the boxes so that the channel number is well away from the other (and everything else). You may need to experiment to find a clear channel that doesn't give a grainy picture or interference. You will need to retune your upstairs TV set to see the SKY+ picture.

Buy it here.