Contrary to popular belief, VM tend to announce things when they happen. In an unpredictable business, it makes good sense to only announce them when they are ready to go. So I'd expect the ITV content to start appearing very shortly.
VOD was first announced on the day it launched.
http://pressoffice.virginmedia.com/p...800&highlight=
Same with iPlayer.
http://pressoffice.virginmedia.com/p...610&highlight=
Out of necessity, large amounts of VOD content can't instantly appear. It needs to be propagated over the network to the 55 server farms.