Multicast service information providing system to subscriber for service in multimedia satellite communication system

PURPOSE: A multicast service information providing system to a subscriber for service in a multimedia satellite communication system is provided to easily recognize the changed item of the multicast service, and easily use the added multicast service. CONSTITUTION: A center station includes database storing multicast service information, a network management system updating the multicast service information stored in database, and subscriber management system for periodically reading the multicast service information and transmitting to a set-top box. The set-top box(4) receives the multicast service information with controlling for transmitting the same to the personal computer(5). The personal computer includes a channel information table(53) for storing the multicast service information, a PNM(PC Network Monitor) program(52) providing GUI(Graphic User interface) screen based on the service information stored in the channel information table, a subscriber program for updating the channel information table with controlling for connecting the multicast service selected by a user if the user selects an arbitrary multicast service through the GUI screen.