On Verizon FIOS they hook up your house phone lines
Well I have FIOS, 50 MPS up and down, so fiber runs to an ONT box on the side of my house and from there coax carries the signals for my TV boxes and wireless router. Since its Verizon aka "the phone company" he also hooked up our house phone wiring to the box so all our phone jacks run the same.
In our area, Pittsburgh, we have Comcast, Fios and Dish for TV. I'm not sure if DSL is still available. Thats what we had before and before that dial up WOW from CompuServe. Comcast or its Predecessors have been around since cable first came in in the mid 70's.