Over the years I've had many cable providers but I haven't had cable in like 10 years. Near the TV in my living room - I have a cable that comes up from the floor that leads to an area near the back of the house where there a bunch of different cable connector. The question is - what would be the equivalent of a telephony cable toner for coaxial cable? I was thinking I would like to have a digital antenna for getting better digital OTA signal but avoid running a new cable. But I don't know which of the connectors would feed the current run. Thank you.