First things first. I pretty much don't know squat about electronics. Today I purcased an LG LRM-519 to replace the DVR provided by Time-Warner. I disconnected the co-ax with signal in and the co-ax with signal out and hooked them to the same terminals on the LG. Nothin'. No screen to even tell me the machine was trying to do anything. The only response I got was "No Usable Signal".
Do I have to have the unit hooked to a telephone line to make it operate? Any other suggestions? (2 guys at Best Buy gave me two different answers; 3 calls to Time Warner garnered 3 different answers...very frustrating)