A prototype Rapid-Sequential-Positioning (RSP) remote manipulator task was developed for assessing the effect of motion parallax and stereoscopic 3D in teleoperator video display systems. The RSP task requires the operator to move the remote manipulator arm as quickly as possible to touch a series of ten target sites in random sequence, as indicated by a small light bulb located at each target site. The task board is rotated to a new position for each ten-target trial to minimize simple learning effects. Six subjects were tested under four display conditions:(1) 2D static, (2) 2D motion parallax, (3) 3D static, (4) 3D motion parallax. The data indicate a large significant advantage for the 3D stereoscopic display condition, with a smaller significant advantage for the motion-parallax condition.