Abstract: After reservation information is acquired, whether there is any connection destination device is determined. When there is no connection destination device, a warning is displayed on a display device in the connection source device side. Reservation registration is stored in a memory in the connection source device side. This operation is repeated until a reservation start time point. When a reservation start state starts, it is confirmed again whether there is any connection device. When there is the connection device, a state of a power supply of a recording/reproducing device to be a reservation target is checked. When the power supply is off, the power supply of the recording/reproducing device to be the reservation target is requested to be turned on by communication, and the recording/reproducing device to be the reservation target is requested to select channel. Next, it is determined whether or not the channel selection is successful.

Abstract: Reservation information is acquired (S1), it is determined whether or not there is any connection destination device (HDMI, recording/reproducing device) for a connection source device (television) (S2), and when there is no connection destination device, a warning that there is no connection device is displayed on a display device in the connection source device side (S3). Reservation registration is stored in a memory 18 in the connection source device side (S4). The above described operation is repeated until a reservation start time point. When a reservation start state starts (S5), it is confirmed again whether there is any connection device (S6), and when there is the connection device, a state of a power supply of a recording/reproducing device to be a reservation target is checked (S7).