Program receiving display device and program receiving display control method

A program receiving display device adapted for a digital broadcasting service and an IPTV service, comprising:

• a first program stream acquisition unit that acquires a first program stream based on a broadcast signal from a station selected according to a channel number from received broadcast waves;
• a second program stream acquisition unit that sends a distribution request of a second program stream to a distribution server according to specific link information and acquires the second program stream distributed under a simultaneous program distribution from the distribution server in response to the distribution request;
• and
• a main control unit that performs control to select at least one of the first program stream and the second program stream, and to display a program content configured based on the selected program stream on a screen,
• wherein the main control unit performs control:
• to switch an operational mode to at least one of a first operational mode in which the first program stream is selected and a second operational mode in which the second program stream is selected, for a current channel number, according to an operation of a viewer;
• in case where a first time-shifted operation to go back to a point in time in a past is accepted from the viewer while a program content based on the first program stream is displayed on the screen in the first operational mode, to switch to the second operational mode to cause a program content based on the second program stream, the program content being the simultaneous program distribution of the first program stream, to be displayed on the screen;
• and
• in case where a second time-shifted operation is accepted from the viewer while the program content based on the second program stream is displayed on the screen in the second operation mode, to cause another program content in a distribution time zone different from a distribution time zone of the program content being displayed to be displayed on the screen.