Yeah, this doesn't make any sense at all. Comcast's tap would be either above or below the other service providers tap. And it's normally universal (above or below) for the entire city. Also, I seriously doubt both providers use identical house tags, connects, etc..
The cable box on the outside of my house says property of Comcast cable seems like that would be an easy way to tell if it was their customer or not. -- Patriots always speak of dying for their country never killing for it. Bertrand Russell
