Broadcasting receiving device capable of enlarging communication-related information and control method thereof

A broadcasting receiving terminal for enlarging and displaying the broadcasting-related information and a control method thereof are provided to display a broadcasting program to a screen, to search the broadcasting-related information when selecting the broadcasting information enlargement mode and to enlarge and display the searched broadcasting-relating information. A process for displaying a broadcasting program on a screen is performed(S220). When a broadcasting information expansion mode is selected(S240), a process for searching the broadcasting related information displayed on the screen is performed(S260). Thereafter, the searched broadcasting related information is displayed(S280). The searched broadcasting related information is displayed on one of the screen of a pop-window or a transparent window. The broadcasting related information is character information. When displaying the broadcasting related information, the corresponding sound information is outputted.