CREATE TABLE table_47575 ("Season" FLOAT, "Date" TEXT, "Score" TEXT, "Winner" TEXT, "Venue" TEXT, "Competition round" TEXT)

On what date did Universitario win the Torneo Apertura round after 2003 at Estadio Alejandro Villanueva?
SELECT "Date" FROM table_47575 WHERE "Venue" = 'estadio alejandro villanueva' AND "Season" > '2003' AND "Competition round" = 'torneo apertura' AND "Winner" = 'universitario'
SELECT "Date" FROM "table_47575" WHERE "Competition round" = 'torneo apertura' AND "Season" > '2003' AND "Venue" = 'estadio alejandro villanueva' AND "Winner" = 'universitario'