Yep, that one's easy. Virgin Media is a cable TV operator, and the co-ax cable is what supplies the live TV channels.
All VM TV boxes need 2 connections... the WiFi or Ethernet to your homehub only supports the various internet-based functions, namely OnDemand & various updates. The Ethernet cable for live TV is still a requirement.
If you don't have a co-ax cable connection in the location you want to use your TV360 box, you'll need a manned engineer installation.
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