A program-guide-display controlling apparatus for displaying a plurality of program guides on a display unit in a matrix form by using one of the ordinate and the abscissa as a channel number axis and another one as a time axis comprises means for displaying to discriminate a time period in which a purchased program is present and a time period in which the purchased program is not present, so as to ensure that a situation in which two or more PPV programs which are broadcast during the same time period happen to be purchased is made difficult to occur.