Patent ID: 7518658

Claim:
A television broadcast receiving apparatus comprising: a first receiving unit for receiving a television broadcast; a second receiving unit for receiving the television broadcast; an image output unit for producing main picture screen data for a main picture screen based on image data of a broadcast program received by said first receiving unit, producing sub picture screen data for a sub picture screen based on image data of a broadcast program received by said second receiving unit, and producing display picture screen data for a display picture screen comprising the main picture screen and the sub picture screen, and outputting the display picture screen data to a display device; an audio output unit for outputting at least one of audio data related to the main picture screen and audio data related to the sub picture screen to an audio device; and a control unit for controlling said audio output unit so as to change the ratio of the volume of the sound related to the main picture screen and the volume of the sound related to the sub picture screen, in accordance with the state of the sound related to the sub picture screen.