Over the past few days I have been playing about with my Sky Boxes at home, and found a few hidden secrets around. This post is just to combine the bits I have found.
Forcing An Upgrade
After a few months of having a HD box still running on the old EPG (electronic program guide) , I decided to find a way to force the system to update to the latest version.
You can do this by:
Power off the box at mains
Hold down back up buttom on front of box
Power back on at mains
When download message appears on screen, let go of back up button.
This will usually take around 10 minutes, but once the box comes back, you should have the latest software for your box 
Sky Installers Menu
The Sky installers menu allows you to change extra settings on your Sky box, but be careful, changing settings in here can cause your box to stop working.
On the original sky epg, you can access this menu by pressing the following keys on your sky remote in order.
SERVICES
4
0
1
SELECT
More information can be found about the options here: http://www.digitalsat.co.uk/skyinstallersmenu.html
To access the menu on a sky HD box, you need to press the following keys in order:
SERVICES
0
0
1
SELECT
Ha, this is awesome, updating now cheers!