PURPOSE: To enable even an unskillful user to easily handle the tuner by selecting an input signal from a decoder automatically when a BS channel having a broadcast of a special signal processing form is selected based on stored information.

CONSTITUTION: A channel through which a scramble broadcast is implemented is registered in a RAM 21 at first as the initial setting before the use by the operation of the user or the like. A BS channel command is outputted from a remote commander RC and when it is inputted to a CPU 19, at first whether or not the BS channel is a registered channel is discriminated. When the channel is the registered BS channel (i.e., scramble processing broadcast channel), each switch of a changeover circuit 15 is turned to a position of a contact (a) and a 2nd intermediate frequency conversion circuit section 11 selects the controlled channel.