Sony HSR-1 Operating Instructions Manual page 24

Recording
Date/Time
The date and time of recording are recorded.
The camera number, date and time of recording can also be recorded as
image on the tape. The data recorded as image are always be
superimposed on the playback picture.
Whether to record the data as image is set on the Indication Control menu
(page 4-8), which is set at the factory to record.
The superimposing position of the date and time can also be set on the
Indication Control menu.
2-8
Chapter 2 Basic Operations