The event was presented by
Laurita Valenzuela, who was dressed for the occasion by . The
surrealist artist
Salvador Dalí designed the publicity material for the contest. The musical director was
Augusto Algueró, who made the arrangements and conducted the 52-piece orchestra during the opening and ending acts. The show opened with a rendition of the
Eurovision tune by the organ, followed by the orchestra performing the previous year's winning song, "La, la, la". The interval act consisted of a surrealist documentary titled , directed by
Javier Aguirre, with music by
Luis de Pablo. The show ended with the orchestra performing a medley of previous Eurovision winning songs during the credits. The event had a budget of around 5 million
pesetas (€30,050). For the set built on the stage, the TVE scenography divisions in Madrid and Barcelona, headed by Bernardo Ballester, designed ten different proposals and built a scale model for each of them. These were shortlisted into three designs for further consideration, from which one was selected. The final design included the 5,000-pipe fixed organ already present at the back of the stage, a scoreboard on the side, a central steel sculpture created by surrealist artist , and fifteen thousand red and pink carnations. Since they were not allowed to make any modifications to the stage, not even hammering a nail into it, the set was prefabricated in more than three hundred modules that, brought from
Prado del Rey, were assembled on-site. For better visibility, the floor of the set was raised above the stage. TVE had full access to the concert hall starting from the evening of 16 March, immediately after the audience and staff of that day's regular season concert had left the venue, which allowed its stage crew to begin assembling the set right away, its technical crew to begin setting up the equipment afterwards, and the orchestra to start rehearsals on 22 March. This was the second contest to be filmed and transmitted in colour, even though TVE did not have the required colour equipment for such a big event at the time. It had to rent such equipment from the German
ARD, which was provided by
Fernseh and brought to Madrid from Cologne. Five colour television cameras inside the concert hall, three of them mounted on cranes, were used to broadcast the event. To avoid interruptions in the broadcast, the television signal was transmitted to the other broadcasters feeding the
Eurovision network by two simultaneous ways: via the terrestrial microwave relay link network through France, and via the
Intelsat III F-2 satellite through Italy. It was the first time that the contest resulted in a tie for first place, with four entries each gaining 18 votes. Since the rules in place at the time allowed more than one winner, all four countries were declared joint winners
ex aequo. This caused a problem concerning the medals that were to be distributed to the winners, as there were not enough to go round, so only the singers received their medals on stage; The medals were presented by previous year's winner Massiel, after which all four winning songs were reprised. == Contest overview ==