Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_12995531_3 (series_number VARCHAR, date_of_first_broadcast VARCHAR)
### Question:
what is  the series number where the date of first broadcast is 16 october 2008?
### Answer:
SELECT series_number FROM table_12995531_3 WHERE date_of_first_broadcast = "16 October 2008"