A:Answer That's not necessary if you already have your TV and cable box hooked up using an HDMI cable. You would just need to connect your TV to the soundbar using the fiber optic cable that was included. The audio source when watching TV is your cable box that goes to your TV then out to your soundbar, so you don't need to hook the soundbar up to your cable box. This also allows you to have audio coming out of the soundbar for any other audio/video devices connected directly to your TV such as DVD/Blu-Ray players, gaming consoles, streaming devices, etc.