In Las Vegas...
...there are three levels of cable on each pole:
top: High Voltage transmission, one wire if single phase, three if three phase.
next: local 220/120 for delivery to users.
then: telephone company messenger wire, and supported cables.
bottom: Cable company messenger wire. When COX put fiber into my house, they hung the fiber cable on the same messenger wire.
Although we would all prefer utilities underground for esthetic reasons, adding another level to existing phone/electric poles could be a real winner for Virgin.
Internet and beer, a match made in heaven.