subject: How to compare broadband TV and phone packages [print this page] BT Vision is an IPTV service - that means unlike Virgin (which uses cable) and Sky (which uses satellite), Vision actual connects your television using your existing internet connection. As such it's got its own distinct advantages and disadvantages, including a cheaper overall price but a lack of content compared to Virgin and Sky. The list of channels is the same as with freeview, but you also get access to various amounts of on demand content including films.