ISDB Television
In Japan and Brazil, ISDB (similar to DVB) is used, and was specifically designed with physical RF segments that could be split to use for different subchannels.
Read more about this topic: Digital Subchannel
Famous quotes containing the word television:
“They [parents] can help the children work out schedules for homework, play, and television that minimize the conflicts involved in what to do first. They can offer moral support and encouragement to persist, to try again, to struggle for understanding and mastery. And they can share a child’s pleasure in mastery and accomplishment. But they must not do the job for the children.”
—Dorothy H. Cohen (20th century)