PURPOSE: To simplify an operation of shifting reservation time back and forth.

CONSTITUTION: A time shift amt. of data of reservation contents under display on a reservation contents display means 3 is set by operating a one-easy-step shift key, and a time shift amt. signal (d) for showing this time effect amt. is supplied to a timer time revision circuit 6 by a time shift amt. setting means 5. Data (f) of revised reservation contents including video recording starting time and video recording ending time, shifted by the same time as performed for shifting the video recording starting time and the video recording ending time on the data (e) of the reservation contents by the time shift amt. as shown by the time shift amt. signal (d) is produced and supplied to a timer executing control circuit 2 by the timer time revision circuit 6. The data of the reservation contents is revised and stored by the timer executing control circuit 2 based on the data (f) of the, revised reservation contents. By this method, the reservation time can be shifted back and forth by the extremely simple operation.