Disclosed is a system for compensating a viewer for viewing of a designated
channel with reduction of telephone charges. The system comprises a signal input
port to which image signals from a plurality of channels are accessed; a signal
output port for supplying the image signals to a picture receiving device for displaying
them; a telephone network port to which an external telephone network is accessed;
a telephone connection port accessed to a telephone set; a channel filtering unit
connected between the signal input port and the signal output port, for outputting
only the image signals from a single channel among the plurality of channels to
the signal output port; and a controller for controlling the channel filtering
unit so that the designated channel is output when making a phone call. With this
configuration, an audience rating of the designated channel can increase and the
telephone charges of the user can be reduced.