BROADCAST SYSTEM, TRANSMITTER AND RECEIVER

PROBLEM TO BE SOLVED: To allow a receiver that receives broadcast data sent from a transmitter and transmit information too the transmitter via a communication channel to select a proper connection destination in response to congestion or the like in the communication channel. SOLUTION: In the case that it is required to set up a communication channel with a transmitter via a public network 70, a CPU 100f acquires a telephone number of the transmitter from an HDD 100j and gives it to a channel control section 100k via a bus 100e. The line control section 100k transmits this telephone number to a public network 70. When establishment of a communication channel by this telephone number is unsuccessful due to any cause, the CPU 100f extracts the telephone number (telephone number of the transmitter) included in a broadcast wave received by a reception section 100a and gives it to the channel control section 100k, from which dialing is made. When the setup of the communication channel is still unsuccessful, the similar processing is repeated furthermore.