Control of a system for processing a stream of information based on information content

A segment announcing system is disclosed that contains one or more segment announcement receivers that receive one or more announcements over a network connection and/or other communication connection. The announcements contain content information about the content of broadcast information being broadcast, e.g., to a television. The segment announcement receivers have one or more control outputs to perform a function, typically to control the segment announcement receivers during processing of information called a content stream.