Portugal debuted at the Eurovision Song Contest 1964, with the song Oração by António Calvário. It didn't fare well, finishing last with the dreaded Nul Points, which the country hasn't had until 1997 with Antes do adeus. A Portuguese entry has also sparked the Carnation Revolution against the Estado Novo, and that entry was E depois do adeus by Paulo de Carvalho at the contest in Brighton in 1974.
Since 2004 however, Portugal has failed to make it out of the semi final stage 8 times.
On the good side, however, many fans believe that Portugal has set a trinity of fan-favourites through the years 1996 to 1998, despite having Nul Points in 1997.
Portugal decided to sit out the 2016 contest citing restructuring at RTP, though others believe poor recent results could also have been a factor. The country returned in 2017 and won with a record score, ending a 53-year drought.