The first CMR existed in 1987 on 101.5 FM in Lisbon. In its early months the station was known for playing albums in their entirety, with no interruptions for announcers. By the middle of the year, the station began to formally promote itself, using the name Correio da Manhã Rádio. In this phase, CMR started to build its identity, programming and presenter base. Weekdays from 07:00 AM to 08:00 PM, the station provided a mix of music and news; at night and on weekends, the station prioritized author programming. The format changed in 1990 to compete against TSF by adding live football commentary and political debates. In March 1993 Rádio Comercial, which used to be under the aegis of Radiodifusão Portuguesa, was privatized. CMR's parent company bought Rádio Comercial, leading to the shutdown of the network.
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