This paper describes configuration of an Electronic Studio System and its application to a TV program. The system is defined as electronically generated studio set in the virtual space, and motions of live cameras, condition of lighting and 3 dimentional position of the live sets in the live space are the fundamental parameters to controll the system. It is synthesized with a live picture into a complete image of the studio set. This system was applied to a TV program "NANO SPACE" and showed its effectiveness. In the program production, a live picture of a caster and a CG set image generated in real time in accordance with the motions of the live camera have synthesized.
