You put sky and VM in providers, scan in ABM.
In favourites , you should then have a list of groups, sport, films, kids etc.
If you keep scrolling down the groups it will be repeated.
One set should be sky, the other virgin, depending on the providers "order"
When you choose a channel you will see tuner A or B in the bottom right of the screen so you know which
one the box is using,
I use three Providers, so my list is repeated three times.
VM (select your area)
Sky UK ( select your area) I use the SD version of the channel list
Sky ROI select the SD version of the channel list ( Setanta Sport in the Irish bouquet)
From the amount of channels you have I suspect you are only getting cable channels at the mo,
I get over 1000 channels on the three providers.
When you scan it will show you the providers down the bottom of the screen