The disclosure relates to program information display apparatus including a program data receiving unit for receiving program data of digital broadcasting, and a program in-depth information creating unit for extracting in-depth information of a predetermined program from the program data received by the program data receiving unit, and creating program in-depth information thereof. The program information display apparatus is equipped with a program selection input unit for allowing a user to select and display in-depth information of one program when in-depth information of another program is being displayed, and a program in-depth information display changing unit for displaying program in-depth information of a program selected through the program selection input unit when the program is selected.