What is the channel number that has a branding of PTV 4 Laoag?
CREATE TABLE table_24673888_1 (
    ch__number VARCHAR,
    branding VARCHAR
)
SELECT ch__number FROM table_24673888_1 WHERE branding = "PTV 4 Laoag"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the channel number that has a branding of PTV 4 Laoag? ### Input: CREATE TABLE table_24673888_1 (
    ch__number VARCHAR,
    branding VARCHAR
) ### Response: SELECT ch__number FROM table_24673888_1 WHERE branding = "PTV 4 Laoag"