I have a MacBook 2.2GHz and HP LP2465 24" monitor. The Mac is connected to the internet by Airport Express which is connected to a cable modem. I would like to be able to watch regular TV channels in a window on the Mac. I believe this can be done, but I don't know how... can anyone direct me on how to make this happen? Would I need to have my regular television cable brought into my office and connected to an outboard box of some sort or can the TV signal come through the internet cable to the cable modem to Airport Express to my MacBook?