I just received an old Phillips TiVo unit with a defective modem. All I got was the unit itself, the remote, and the power cord. The unit does have a lifetime membership on it & is running version 2.5(??). I am new to TiVo and not incredibly tech-savvy. I have an external modem to use for the initial setup, but don't know what cords I need, how to set up the unit, and then how to connect it to my wireless network. Can someone help me? Thanks!