Digital broadcast signal distribution system and subscriber terminal

A digital broadcast distribution signal distribution system comprising:

• two or more distribution centers, communicably connected to one another through a communication line, each of said distribution centers for distributing a digital broadcast distribution signal, which has been created based on program information received in each said distribution center, to subscribers through a CATV (Community Antenna Television) network, for sending the digital broadcast distribution signal to another of said distribution centers and for receiving a digital broadcast distribution signal from another of said distribution centers;
• and
• subscriber terminals, each for receiving a digital broadcast distribution signal distributed from one of the distribution centers through the CATV network so that a subscriber views a program,
• each said distribution center including a signal replacement section for replacing the first-named digital broadcast distribution signal created based on the program information received in each said distribution center with the second-named digital broadcast distribution signal, which each said distribution center received from another of said distribution centers, and
• each of said subscriber terminals including
• a distribution plan storage for retaining channel distribution plans, one representing distribution setting information of the first-named digital broadcast distribution signal of each said distribution center,
• a distribution center discriminating section for discriminating the one distribution center that has created the third-named digital broadcast distribution signal, which is received in each said subscriber terminal, and
• a receiving section for changing, if the one distribution center is discriminated not to be a predetermined distribution center, NIT information of the third-named digital broadcast distribution signal based on the channel distribution plans of the one distribution center and the predetermined distribution center, and receiving the third-named digital broadcast distribution signal.