Radio, in Quebec, is marked by the circumstances of its birth. Indeed, the first commercial radio stations are owned by media companies and rapidly, a form of synergy emerges from the relationship between the two media, especially as radio is associated with strongly utopian representations of collective life. The page devoted to radio programming serves two purposes : on one hand, to popularize radio technology and render it accessible to an audience already won to mass media such as newspapers ; on the other hand, to encourage listeners to make wise choices by consulting the details of the programming offered by Canadian and American stations, while specifically highlighting local programs with which the newspapers are associated. As we do not have sound archives for the period between the wars, radio pages are valuable. The work of Marie-Thérèse Lefebvre allows us to reconstruct the programming and seize what was the contribution of radio to the cultural life of the time. At the same time, research in the press can help in finding traces of staged plays, of conferences, of read poems, but also to grasp the status of radio broadcasting through advertising and scholarly articles, and the use made of them in journalistic information. In short, the research that crosses press and radio invites to organize otherwise existing archives and even to imagine creating inaudible radio archives.