When you have your new Sky Box installed make sure your engineer carries out a New Software Download (Not all of them do). If you are installing it yourself please follow the instructions below.
You will need to do this once you have installed your new box to get the most upto date software and features like Sky Anytime on demand TV (Sky HD / Plus only)
Simply switch of the unit at the main so all the light on the unit go out
Now press and hold the Back Up button on the unit (not remote)
Turn the mains back on, and continue to hold it down until all the lights on the unit come on and you get a message on your TV Screen
Release the button and leave the box until its finished (It will turn itself off)
Switch it back on and your done