Patent US 8,620,146

A method and apparatus for providing a picture-in-picture overlay video system for superimposing real time video onto a prerecorded video image onto a viewing screen. The present invention is used for exercise and sports instruction by enabling the user to view a real time video image superimposed on a viewing screen showing a prerecorded instructional video and allowing for comparison of the users form in comparison to that of the instructor on the prerecorded video. The merged images can also be saved for future evaluation.