The formatpremiered at 22:15 on October 27, 1994, being in the same line as Perdoa-me and All You Need is Love. In 1995 it moved to Monday nights. Before its creation it was part of another program, Casos de Polícia, by April 1995, it had become the second most-watched program. By then, more than 10,000 letters to the production of the program hadn't been dispatched yet. Some of the cases shown in the program were staged.