Commercial radio stations, like Radio Luxembourg and Europe n°1, were highly popular media in Western Europe in the 1960s, which notably broadcasted in French, English, and German. However, their study has not received as much attention as their public counterpart. Following a trend pushing to bring them back into the centre of attention, this contribution reveals the rich potential of commercial radio stations for historical literature and radio studies and acts as a plea to further their study. As commercial entities, these radio stations do not have to share their archives, which are often in multiple sites and languages, making their study difficult. Despite these challenges, writing their history offers many opportunities for radio scholars. First, commercial stations are based in peripheral regions of large markets such as France, in order to avoid State monopoly on broadcasting, making them key transnational actors. They are not only ideal subjects to conduct radio history across borders; they are also particularly relevant when it comes to cross-media studies. Indeed, stations like Radio Luxembourg and Europe n°1 strongly relied on other media to support their overall commercial venture. Therefore, this contribution will study the potential of such stations to enrich radio history by including perspectives from transnational and transmedial lenses. ; Las emisoras de radio comerciales, como Radio Luxemburgo y Europe n°1, fueron medios de comunicación muy populares en la Europa Occidental de los años 60. Sin embargo, los investigadores no les han prestado tanta atención como a sus homólogas públicas. Siguiendo una tendencia que trata de volver a poner el foco sobre ellas, esta contribución revela el rico potencial que estas radios tienen para la literatura histórica y los radio studies. En este sentido, el trabajo constituye un alegato para profundizar en su análisis. Al tratarse de entidades comerciales, que no están obligadas a compartir sus archivos y que, a menudo, se encuentran en múltiples ...