A communication system includes an information display apparatus and an information providing apparatus which perform communication with each other. The information display apparatus transmits, through the network, an information transmission request for requesting transmission of specific information related to the information providing apparatus to a plurality of apparatuses connected to the network by broadcast communication, receives the specific information transmitted, through the network, from the information providing apparatus to a plurality of apparatuses connected to the network by broadcast communication, as a response to the information transmission request, and controls a display unit to display the specific information received as the response to the information transmission request.
