He is a video artist, visual poet, graphic artist and television professional. With a degree in Radio and TV from the School of Communication and Arts of the University of São Paulo, Silveira has created authorial, experimental, electronic-oriented projects since 1977. In 1979, he was the assistant director to Antonio Abujamra at TV Tupi’s Drama Department. He co-founded TVDO, a leading production company in Brazilian 1980s independent video. As the programming director at TV Gazeta, from 1987 to 1996, he created and directed several shows, such as Mix News and Clodovil Abre o Jogo. In 1997, he made a documentary on the Documenta show in Kassel, Germany, aired on TV Cultura. In 1998, he was hired by the channel as head of the programming board. Parallel to his television activities, he founded the first video school in the country and organized Videoteca Brasileira, comprising more than 150 national video art titles. He participated in the XXIII International Biennial of São Paulo (2003) with a multimedia installation paying tribute to Oswald de Andrade. In that same year he developed the intermedia show Poesia é Risco, with poet Augusto de Campos and musician Cid Campos, which was presented in several countries.