Seconded. I have a wireless router that runs the Wii and the Nintendo DS consoles. The job laptop that I now have on the kitchen table does not have wireless so I put a cable through from the computer room.
With the puppy, I find myself sitting a lot in the kitchen and keeping him company so this has been a godsend. Also, I have the kitchen door open and I'm only a short distance away from the TV, not in sight however, and can still hear what is going on.