FCC approves TV technology that gives better pictures but less privacy
The system uses precision broadcasting and targets emergency or weather alerts on a street-by-street basis. The system could allow broadcasters to wake up a receiver to broadcast emergency alerts. The alerts could include maps, storm tracks and evacuation routes.
The new standard would also let broadcasters activate a TV set that is turned off to send emergency alerts.
https://www.reuters.com/article/us-usa-television-technology/fcc-approves-tv-technology-that-gives-better-pictures-but-less-privacy-idUSKBN1DG2XF