The years between 1937 and 1941 were fundamental for them: they joined the Orchestra Cetra as singers, directed by Pippo Barzizza. This event gave them a sudden and extraordinary popularity and they were chosen to open the experimental broadcasting of the "radiovision", the future Italian television. In 1940 they performed a musical number ("Oh! Ma-ma!") in the film "Ecco la radio!" (""Here Is the Radio!""), directed by Giacomo Gentilomo and dedicated to EIAR. They recorded a great number of songs under the direction of Pippo Barzizza.