Hello, I just setup a 3D, high density Samsung tv and a Samsung Blu-ray player. I believe both have USB and Ethernet ports. My LAN is via a Comcast (Motorola) modem and a Linksys router. I see an open port on the back of the modem and three on the back of the router. My TV is about ten feet from either the router or modem. To access the Internet, should I try a long ethernet cable or a long USB or what?