Definitions for "Narrowcast"
To direct a program at a small segment of listeners or viewers, particularly using cable TV.
As the term suggests, an alternative to 'broadcast', in which a particular text, or whole channel, is targeted at a narrow niche audience.
The terms, Narrowcast and Multicast are often used interchangably. In general, narrowcasting / multicasting refers to sending a message to a select group, whereas Broadcasting refers to sending a message to everyone connected to a network or service.
Transmission of specific programming to predetermined users of a telecommunications network. Only some users of the network are receiving the same information.