This rating system would work in conjunction with the V-chip , a device embedded in television sets that enables parents to block programming they determine to be inappropriate. They agreed that the guidelines would be applied by broadcast and cable networks in order to handle the large amount of programming that must be reviewed — some 2, hours a day. The guidelines would be applied episodically to all programming based on their content, except for news, sports and advertising. The guidelines were modeled after the movie ratings system created by the Motion Picture Association of America in The television industry agreed to insert a ratings icon on-screen at the beginning of all rated programs, and to encode the guidelines for use with the V-chip. Finally, the revised proposal called for five representatives of the advocacy community to be added to the TV Parental Guidelines Monitoring Board.