An apparatus, method, and program for providing supplemental information related to video programs. Through a computer network interface, a user can request and receive specific supplemental audio/video information related to a video program. Alternatively, the supplemental audio/video information can...http://www.google.fr/patents/US6263505?utm_source=gb-gplus-shareBrevet US6263505 - System and method for supplying supplemental information for video programs
System and method for supplying supplemental information for video programs
