thanks for the comments
I had thought that the Sky content that you could get through Virgin included the HD channels (including the wickedly expensive Sport and Movies)so it was a good job your posts caused me to look again to find the HD channels are excluded.
I'm not quite sure why Virgin even mention HD in their promo material as it seems the only stuff you can get through them is from the good old Beeb. What is the point?

I can only imagine that the folk who pay for their TV service are those who cant get a decent freeview reception?
There is mention of On Demand programmes - but the promo material doesn't give you any clue as to what those programmes might be - all very vague. I suspect that anything other than dross will have to be paid at a fee they are too frightened to tell you about upfront? Who is going to pay for a service where you have no idea what you are signing up for!!
Virgin seem to make much of the concept of "choice" - but choice is something I can do without if it means paying over and above the Licence fee for dozens of channels I dont want and will never watch and gumming up the cable/airwaves with crap instead of a much smaller number of quality offerings.
This whole broadcast HD mullarkey seems to be a complete farce and the pathetically limited programming seems to be shared between the providers in a seemingly illogical way:
ITV HD is only available on Freesat..... Why?
Channel 4 HD only seems to be available on Sky.....Why? (but to get "ordinary" Channel 4 the Sky website seems to suggest you need some sort of extra viewing card..... whats that all about then?? - you pay extra over and above your 50 odd quid a month subscription to receive mainstream channels everyone else gets for nothing???.....hmmmm)
The TV manufacturers must be tearing their hair out.... there they are producing nice new shiny tellies to sell to the public keen to take advantage of the HD benefits we are all told about- but when we come down to it the broadcasters have managed to arrange it so that anyone wanting a reasonable (hardly extensive) diet of HD would have to subscribe to/buy the flippin lot of them. Result - consumers who look beyond the advertising blurb realise its all a complete waste of cash and decide, like me, to say "sod the lot of you" and keep my cash unspent thereby making my own little contribution to the economic downturn