Televisa held a national competition with four televised qualifying rounds and a final to select its entry for the
4th edition of the
OTI Festival. This fourth edition of the National OTI Festival featured 32 songs, of which nine reached the final. In addition to the general competition, awards were given for Best Performer and Best Musical Arrangement, among all the competing artists. The shows were held at Studio 2 of
Televisa San Ángel in
Mexico City, were presented by
Raúl Velasco, and were broadcast on within the show . The musical director was , who conducted the orchestra when required.
Qualifying rounds The four qualifying rounds were held on Sundays 7, 14, 21, and 28 September 1975. The eight highest-scoring entries among the 32 competing advanced to the final.
Final The final was held on Sunday 5 October 1975. The winner was "", written by
Felipe Gil, and performed by
Gualberto Castro. The festival ended with a reprise of the winning entry. In addition, received the Best Performer Award and the Best Musical Arrangement Award. == At the OTI Festival ==