Abstract: In a method for selecting one of a plurality of channels, a channel selecting device that is coupled to a television device stores at least a channel statistical data of total watching time of each of the channels. In the method, immediately after the television device is turned on, the channel selecting device selects a preferred channel from the plurality of channels, which has been watched most frequently, according to the channel statistical data.

Abstract: An LCD TV capable of being used as a music station only, which can turn off the internal video decoder and the internal backlight power when the LCD TV only desires to output an audio. The LCD TV panel has a backlight control terminal with a first state and a second state to turn on/off the internal backlight power based on the first or second state. A video decoder has a working mode and a standby mode. When an instruction received by a command input device is a panel backlight power turning-off instruction, a controller produces a control signal to set the backlight control terminal to the second state to thereby drive the LCD TV panel to turn off the backlight power thereon and set the video decoder to the standby mode.

Abstract: An LCD TV capable of being used as a music station only, which can turn off the internal video decoder and the internal backlight power when the LCD TV only desires to output an audio. The LCD TV panel has a backlight control terminal with a first state and a second state to turn on/off the internal backlight power based on the first or second state. A video decoder has a working mode and a standby mode. When an instruction received by a command input device is a panel backlight power turning-off instruction, a controller produces a control signal to set the backlight control terminal to the second state to thereby drive the LCD TV panel to turn off the backlight power thereon and set the video decoder to the standby mode.

Abstract: A liquid crystal display television capable of automatically turning off a backlight source is provided, which turns off the backlight source in case of no video signal. The method includes the steps of: (A) selecting a signal source as a working signal source for the liquid crystal display television; (B) determining whether the working signal source contains a video signal; (C) determining whether an instruction is received when no video signal is determined in step (B); (D) further determining whether a period of no video signal exceeds a predetermined time when no instruction received is determined in step (C); and (E) turning off the backlight source on a panel of the liquid crystal display television when the period of no video signal exceeding the predetermined time is determined in step (D).