Abstract: A video apparatus and a method for recognizing a digital interface thereof are disclosed. The method for recognizing the digital interface of the video apparatus enables a multimedia source to re-execute a high definition multimedia interface (HDMI) recognition to deal with errors when the multimedia source connected using the HDMI fails to recognize that the video apparatus supports the HDMI due to a cable connection error, an EDID recognition error, or an HDCP authentication error. The video apparatus determines whether or not a format of an input video signal is HDMI or DVI, and displays a result on a screen so that a user can recognize the format. As a result, the video apparatus enables a user to recognize whether or not the HDCP authentication error is occurred, and notifies the user of a method for improving the cause of the HDCP authentication error.

Abstract: A broadcasting receiving method and apparatus are provided. The broadcasting receiving apparatus includes a receiver which receives a broadcasting signal; a storing part which stores a channel corresponding to the received broadcasting signal; an electric field intensity measuring part which measures an electric field intensity of the broadcasting signal corresponding to the channel; and a controller which classifies the channel into at least one channel group according to the electric field intensity and stores the classified channel group in the storing part.

Abstract: A real time preference channel grouping apparatus and method are disclosed. The apparatus receives a preference channel grouping setting signal, a display demand signal, and a group selection signal, stores user selection-guide information according to the preference channel grouping setting signal and the display demand signal, processes a received signal and the user selection-guide information to display on display device, and groups preference channels according to the signal of the key input unit and allows the preference channels and the user selection-guide information to be concurrently displayed. Thus, the user can perform real time grouping for channels to watch for each desired time and easily retrieve only the grouped channels, and hence it is possible to reduce the time for selecting favorite channels.