If you have an existing Internet-connected set-top box, Slingbox from Slingmedia is going to add their Slingbox capabilities if you add their Slingbox 700U to your set-top box. It’s a very convenient product to add the TV Everywhere services at a low cost for US television. Just a simple plug into a USB port, you can power up the Slingbox 700U and start streaming video around the net. No any additional configuration is needed because Slingbox 700U will self-configure.
More Information: @Sling.