CREATE TABLE table_27056 ("Branding" TEXT, "Callsign" TEXT, "Ch. #" TEXT, "Power kW" TEXT, "Station Type" TEXT, "Location  ( Transmitter site ) " TEXT)

What is the channel number that has a branding of PTV 4 Laoag?
SELECT "Ch. #" FROM table_27056 WHERE "Branding" = 'PTV 4 Laoag'
SELECT "Ch. #" FROM "table_27056" WHERE "Branding" = 'PTV 4 Laoag'