A transmitting apparatus adapted to effectively use the band for transferring programs of television broadcasting. A program of a first channel transmitted from the transmitting side can be viewed in real time on the receiving side. A program of a second channel is transmitted to the receiving side in advance in a time zone of lower audience rate than other time zones and stored in a storage device of the receiving side. Each program to be stored is encrypted. When a provision time of a program comes, the data such as a key are transmitted from the transmitting side to the receiving side along with the program data of the first channel. The receiving side extracts the data such as a key and, by use of the extracted data, provides the program stored in the storage device to viewers.