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This week's Ciência é Tudo talks about the implementation of Digital TV in Brazil and the changes that this technology has the potential to bring about in the viewer's relationship with programming. The days of tube television with static in the image and interference in the signal are already a thing of the past for most of the Brazilian population who now receive the digital TV signal, which provides better sound and image quality. In this episode, we show the differences between analog and digital transmission, the regulation of network channels and the interactivity with viewers, which is now possible with this technology. The program also shows the news from TV Brasil, which will now operate on channel 1 in the São Paulo region. And in the interview, a conversation with José Sampaio, director of the Department of Science, Technology and Digital Innovation of the Ministry of Science, Technology and Innovation (MCTI). https://tvbrasil.ebc.com.br/ciencia-e...