Abstract: In a television receiver having a tuner 2 for converting a received signal from an antenna 1 to an intermediate frequency signal and supplying the intermediate frequency signal to a homodyne detector circuit through a filter device to extract a video signal, a variable frequency oscillator is provided for changing the frequency of the intermediate frequency signal such that the frequency of beat components between a local oscillating signal of the tuner and a harmonic signal of the intermediate frequency signal is coincident with a trap frequency of the filter device. The occurrence of interference due to the intermediate frequency signal introducing into the antenna can be prevented by a simple configuration.

Abstract: A video display apparatus comprising a video display device for visually presenting a video image thereon; a light source turned on by discharge and displaying the video image, which is being presented visually on the video display device, on a screen by irradiation of light; and a system controller for putting out the light source after a lapse of a predetermined delay time from input of a command to switch off a power source. There is also provided a method of preventing inadvertent switch-off of the light source in such a video display apparatus. Even if the power source is switched off inadvertently, the light source is not put out at once and the video image can still be displayed continuously thereon by switching on a power key immediately within the predetermined delay time.

Abstract: A character display control apparatus by which only a display of characters can be put into a pause condition without putting a display of an image into a pause condition operates so that when a caption pause is instructed, a CPU controls a screen display circuit and character signals are stored in and read out from a memory. The operation is continued, and the CPU controls a monitor to continue displaying of characters being displayed then as it is until the caption pause is canceled. In this instance, a video signal processing circuit is not put into a pause condition, and when the image of the video signal supplied thereto from an external input terminal varies, the image displayed on the monitor successively varies as time passes. When cancellation of the caption pause is instructed, the CPU controls the screen display circuit so that, when new character data are inputted, they are supplied to the memory so that they are stored in place of the character data stored till then.

Abstract: A character display control apparatus by which characters displayed in a superposed relationship with an image can be confirmed for a desired time even in a pause mode. A function of a pause button of a remote commander for remotely controlling a VTR is additionally allocated to a pause button of a remote commander for remotely controlling a decoder. When the pause button is manually operated, not only an infrared ray signal for putting the decoder into a pause condition but also an infrared ray signal for putting the VTR into a pause condition simultaneously are outputted. After the decoder is put into a pause condition, a character signal stored in an internal memory of the decoder is repetitively read out and displayed on a monitor. Further, since a signal reproduced from a video tape and outputted from the VTR is a video signal of a same frame, the image displayed on the monitor exhibits a pause condition.