Just connect everything included straight to your television and the supplied dc adapter that powers the amplifier to electrical outlet. Nothing connects to incoming cable on the wall. Number of channels and reception will depend on positioning the antenna. Be aware that this will work best if on a window or wall close to window without obstructions. I have mine right on my window. Try a few times until you get the desirable channels you want. I have 25 channels but most are not to my interest. I basically purchased so I can get local broadcasts for football. Hope this helps.