This article discusses the role of children in the contents and practices around television 1950s Mexico City, as well as its relationship with the Catholic moralizing discourse. Children formed an active consumer audience, a generation with a new technological reality and access to media and one of the main moral concerns of the Church. Each child in front of a “tele” (the TV set) established his or her own routines, around which appeared new forms of sociability, imaginaries and stereotypes. They were not a homogeneous “mass”: they were a group that experienced the arrival of the television from multiple references and meanings.