CREATE TABLE table_68743 ("Region served" TEXT, "City" TEXT, "Channels  (  Analog / Digital  ) " TEXT, "First air date" TEXT, "ERP  ( Analog/ Digital ) " TEXT, "HAAT  ( Analog/ Digital )  1" TEXT, "Transmitter Location" TEXT)

What is the transmitter location for city of Maryborough?
SELECT "Transmitter Location" FROM table_68743 WHERE "City" = 'maryborough'
SELECT "Transmitter Location" FROM "table_68743" WHERE "City" = 'maryborough'