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_25800134_9 (series__number VARCHAR, airdate VARCHAR)
### Question:
what is the number of series where the airdate is december 26, 1964?
### Answer:
SELECT COUNT(series__number) FROM table_25800134_9 WHERE airdate = "December 26, 1964"