SURVEILLANCE SYSTEM

A closed circuit TV surveillance system for business and other types of establishments in which a TV camera is movable along a ceiling suspended rail assembly, which assembly is within a partially opaque housing. The camera is selectively trainable, manually or automatically, on any area of interest along the rail assembly, including, for example, stations at which there are electronic indicating cash registers. Digital data from the cash register observed is converted to video characters and mixed with the video output of the camera, and the combined video presentation is recorded.