A lot of blogs and tech reviews reported that the SlingBox was one of the most buzzy application of the last CES.
The slingbox gives the ability to stream any video content over the net. Connect the Slingbox to your cable network plug, DVD player, TiVo box or your Media Center. Then use a special player to watch your content on a remote computer (in your home, hotel, ...) or even on your mobile phone!
The Slingbox is connected to your home network using a Ethernet interface. So that, you can use PLC adaptors to connect it right to your video devices.
More about the slingbox here