Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identical signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning means, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.

Abstract: A broadcasting station transmits script for presenting plural types of additional information relating to main broadcast in a vertical blanking interval included in a video signal. A television receiver generates an additional information selecting screen for selecting arbitrary additional information from plural types of additional information by executing the script according to a request signal received from a television remote controller, and displays in part of a display screen. Reflecting a selection instruction signal received from the television remote controller on the additional information selection screen, the script is executed according to the selection instruction, and selected additional information is generated and displayed on a display screen in a display format conforming to the content of the information.

Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identic signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning circuit, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.

Abstract: An automatic tuning apparatus is capable of automatically switching a tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by a user. The apparatus comprises a SYNC discrimination circuit (11) for discriminating whether or not a video signal system is a NTSC system or another system, a tuning mode switching circuit (12) for switching a tuning mode, and a color discrimination circuit (13) for receiving a color burst signal (identic signal) for discriminating whether the video signal system is a PAL system or a SECAM system. As to the NTSC system, the PAL system, the SECAM system and a SECAM-L system, the user may not set the tuning mode of tuning means, whereby an automatic tuning apparatus imposing no burden on the user can be provided.

Abstract: An automatic tuning apparatus capable of automatically switching the tuning mode of a tuner circuit, automatically arranging various signal data in or after completion of tuning and arbitrarily and automatically arranging various signal data by the user comprises a SYNC discrimination circuit (11) discriminating whether a video signal system is the NTSC system or another system, a tuning mode switching circuit (12) for switching the tuning mode, and a color discrimination circuit (13) receiving a color bust signal (identic signal) for discriminating whether the video signal system is the PAL system or the SECAM system. As to the NTSC system, the PAL system, the SECAM system and the SECAM-L system, the user may not set the tuning mode of tuning circuit, whereby an automatic tuning apparatus imposing no burden on the user can be obtained.

Abstract: A broadcasting station transmits script for presenting plural types of additional information relating to main broadcast in a vertical blanking interval included in a video signal. A television receiver generates an additional information selecting screen for selecting arbitrary additional information from plural types of additional information by executing the script according to a request signal received from a television remote controller, and displays in part of a display screen. Reflecting a selection instruction signal received from the television remote controller on the additional information selection screen, the script is executed according to the selection instruction, and selected additional information is generated and displayed on a display screen in a display format conforming to the content of the information.