CREATE TABLE table_37 ("Calls" TEXT, "Frequency" TEXT, "Branding" TEXT, "Format" TEXT, "Market/Rank" TEXT, "Timeslot" TEXT, "Group owner" TEXT)

What Branding does WRKO calls use?
SELECT "Branding" FROM table_37 WHERE "Calls" = 'WRKO'
SELECT "Branding" FROM "table_37" WHERE "Calls" = 'WRKO'