According to Wikipedia radio drama - or audio drama, audio play, radio play, radio theatre or audio theatre - is a dramatized, purely acoustic performance, broadcast on radio. With no visual component, radio drama depends on dialogue, music and sound effects to help the listener imagine the characters and story.
Radio drama reached the peak of popularity in Brazil during the 1940s up to the mid-1950s. I remember listening to radio-drama up to 1964. My father bought a TV set in 1965 so we stopped listening to 'Juvencio, o justiceiro do sertão' on Radio Piratininga.
But we're talking here mostly of romantic radio theatre that was really popular among women of all ages. PRA-5, Radio São Paulo was king of the radio plays that stretched out for months until it reached a peak with a happy ending. Radio-drama actors and actresses were almost like royalty to thousands of women who idolized them. When they got married the churches were sometimes mobbed and scenes of hysteria would take place.
Cecy de Alencar weds Roberto de Carvalho in May 1951 and are on the cover of Radiolar June issue.
'With this ring I thee wed...'
the crowd wait outside the packed church to have a glimpse of the newly-weds.
Cecy de Alencar & Roberto de Carvalho.
Roberto de Carvalho & Cecy de Alencar in their honey-moon.
Radiolar put radio-stars' children on the cover of April 1953 issue and fans hurried to buy copies and identify the kids with their parents; on 1954 Mothers' Day, Radiolar had 2 radio-stars with their kids on the cover. Cecy de Alencar & her son Alexandre is on the right.