Problem: It is to automatically recognize CM-broadcast periods, while video-recording television broadcast, without interfering with simultaneous access action to the medium for video-recording the television broadcast.Means to Solve the Problem: By detecting transition points in an audio video signal of a television broadcast, recognizing a CM broadcast period when the points occur at intervals specific to CM-broadcast periods, and controlling to record into a recording medium at a predetermined timing, time information of plural CM-broadcast periods determined to be continuous, the frequency to access the recording medium can be reduced, which results in simultaneously recording inputted video images and time information of CM-broadcast periods into the recording medium.