An information receiving terminal includes a designation information transmitting portion to transmit designation information designating a program and a related information receiving portion. The information providing apparatus includes a related information storage portion to store related information containing a plurality of information to which each provision period is settable in association with a program, a designation information receiving portion, a related information extracting portion to extract the related information appropriate for a designated program, and a related information transmitting portion to transmit the extracted related information. The information receiving terminal or the information providing apparatus includes an information selecting portion to select information to which a provision period corresponding to a provision time point of the related information is set from a plurality of information constituting the received/extracted related information as information constituting the related information. An information providing system effectively providing program-related information is provided.