[Skunkworks] DSTV signal distribution

What device is used to distribute the DSTV signal in such a way that there's only one *decoder* but each viewer can watch *different channels* from what others are watching? [image: Google Talk:] kihahu [image: Google Wave:] kihahu [image: Y! messenger:] johnkihahu Contact Me [image: Blogger] <www.kihahu.blogspot.com>[image: Twitter]<http://www.twitter.com/kihahu>