http://en.wikipedia.org/wiki/XBAND
And I was partially wrong on the NES thing but it was online but could not play against others but had a modem for the Famicom.
"# Famicom MODEM is a modem that allowed connection to a Nintendo server which provided content such as jokes, news (mainly about Nintendo), game tips, and weather reports for Japan; it also allowed a small number of programs to be downloaded. A modem was, however, tested in the United States, by the Minnesota State Lottery. It would have allowed players to buy scratchcards and play the lottery with their NES. It was not released because minors were able to play the lottery illegally and anonymously."-Wiki







