works shown there demonstrated that computer graphics could be generated and combined in real-time with live action images. The TV director Shinji Fukuhara visited the exhibition and shortly afterward contracted Iwai to create concepts and a virtual set for a weekly half-hour science news show Einstein TV (Fuji TV, 1990–91). Created on the Amiga, the virtual set included GUI-like pop-up menus. This led to more work with Fuji TV the following year in the development of the daily interactive children's show Ugo Ugo Lhuga (1992–94). Influenced by Pee-wee's Playhouse, which Iwai had seen during his tenure at the Exploratorium in the United States, the show was imaginative and irreverent and featured talking TVs, a tomato that gave advice to call-in guests, a robot named Robot that asked riddles and broke down when given silly answers, anthropomorphic faeces named Professor Poo Poo, and a cubo-surrealist artist named Surr. Ugo Ugo Lhuga is 'go-go girls' anagrammed in Japanese. A central concept of the show was that two live-action main characters would appear to interact with the sets and characters of a virtual world. Instead of generating the virtual characters first and orchestrating the actions of the live-action cast to fit pre-rendered imagery, the characters were generated and composited in real-time with minimal post-production. At first the shows were pre-recorded, but after the first six months cast and crew were confident enough to perform live. To enhance the live-broadcast appeal of the show, Iwai helped devise a call-in sumo match. Children from across Japan sent in drawings of sumo wrestlers on postcards, which Iwai scanned. During the program the audience called in and, watching their televisions at home, shouted into the telephone; the louder they shouted the stronger their sumo wrestler became, finally pushing the opposing wrestler out of the dohyō. Performances and public lectures In 1996 and 1997 Iwai collaborated with musician and composer Ryuichi Sakamoto to create the multimedia stage performance Music Plays Images x Images Play Music. The performance included use of Iwai's installation Piano - As Image Media and a version of Resonance of 4 adapted to use a chessboard-like interface. In June 2004 Iwai gave a prestigious invited public lecture at the 4th International Conference on New Interfaces for Musical Expression, held in Hamamatsu, Japan. Museum design Created during his time as an Artist-in-Residence at the Exploratorium in San Francisco, California, Iwai's works Well of Lights (1992) and