It would be easier to help you if you described what your setup is. Do you have cable tv and a cable box? Satellite tv? Cable without a cable box? OTA antenna? If you have cable with a cable box, you don't need to change how your tv is already set up. You simply run component cables and L/R audio from your cable box to the Slingbox. If you are using the component outputs for your tv, you can use S-video or composite cables for the video to the Slingbox.