If I am not mistaken, you will need to connect a cable from your receiver for every different connection that goes into it. For example, If your VCR goes in via s-vid, you will need to run an svid out to the projector, while at the same time running HDMI if you have your digital cable box connected to your receiver via HDMI, and a component will have to be run if your DVD player is hooked up via component. If there are multiple things using the same connection type, only one output is required.