I have my main TV connected to my Virgin box in a living room, and a second box in a spare bedroom that is connected to cable (put there by previous owners) but as it is a spare bedroom, there is no TV yet connected to it. In my office on the top floor of the house I don't yet have a a cable connection, or even a co-ax, but would like to be able to have a connected TV. Is there any way I can use my subscription on this TV without the hassle of having to have a new cable connection wired in?
The only way I can see to connect to your V6 box without the hassle of extra cabling and additional charges for a second box is to use the TVGO app. This will allow you connect to your V6 via a computer or mobile device, whilst this does not directly mean that you can watch TV in the attic, if you install the app on for example a laptop, you could then using a TV's computer input and sound input watch TV with a minimal outlay.
You can't learn anything from a mistake until you admit that you've made it.
As a TV in your office won't be the main one, Freeview (needs an aerial) might be sufficient. But if you want VM TV which is separately controlled from the main TV you'll have to pay (I think) £7.50pm for a second TV box.