I found the same nightmare of TV cables in the attic. Thanks to an open and spacious attic, I was able to trace some of them to the rooms the lead to. A large cluster, however, disappear into a single hole in the attic floor and could not be traced easily. I've unhooked every cable from the cableco input, as I'm not planning on using local cable. Using a the continuity feature of my multimeter, I was able to trace each cable back to the room and jack it led to. I shorted the jack in each room, one at a time, using a paper clip. In the attic, the mutimeter would give me a positive reading on only the jack that was shorted.
Now I've got every phone line and every cable line located and labelled. Today I install a routing board in the attic which will allow me to hook up my attic antennae and route it to the specific jacks I want it's signal to go to. If I do every want to bring the cable company back, it will be simple to hook them into this routing board.
Tomorrow the Satellite dish gets installed. That's another tale. ;-)
