Can I run a usb cable to my home theatre system, and then have it displayed on the tv?

Question

I know I can go direct to the tv with an s-video cable, but I am trying to get surround sound to work

Answer 1

You can't.

Answer 2

Buy an HDMI video card that will allow you to input surround to it from your sound card. It will mix the audio with the video and send it out the HDMI line to your receiver. ATI makes one of these, don't know about Nvidea.

USB is not for streaming on any receiver I've ever seen, and I've seen most of them.