The TV show Vida e Saúde on RBSTV/RS presents a segment for science popularization called "Bate-papo" (Chat), in which the chief-editor/presenter interviews guests while using characteristics of informal talk in the thematic and dialogical interview. In this article I discuss, based on the Critical Discourse Analysis, associated to the Multimodal Discourse Analysis and to the notion of tact, the relation among participants in that show by analyzing "Bate-papo" as an interview format, with specific practices, which involve sound, verbal and visual languages. Results show that the "Bate-papo" participants dialogue with each other while attempting to maintain an informal tone, evidenced by face to face interaction. In this tone, participants say and repeat information in order to simplify them, in a process of recontextualization that can even change meaning in the technical language when rephrased in common language, the one that is closer to that used in the viewer daily routine.
Chat; Interview; Science popularization; Television; Recontextualization
