Hi speedvisionuk
Any VM broadband customers can add a VM Stream box providing they don't ialready have any other VM TV offering.
If you already receive TV via VM then you would need to give 30 days notice to cancel that TV subscription and then add the Stream box. It's one Stream box per house, and Stream doesn't have a recording facility.
Full details on Stream can be found on the following page
https://www.virginmedia.com/tv/stream
Regarding Netflix on the Stream box. There is a 10% Stream credit back on selected entertainment subscriptions you pay for through your Virgin Media bill. These include subscriptions like Netflix and Disney+ Premium, as well as Sky Sports and Essential Entertainment.
Regarding Stream TV channels. There is a selection of free channels (mainly freeview) and paid channels available.
See /virgin-tv-edit/tips-and-tricks/stream-from-virgin-media-channel-guide