CREATE TABLE table_name_80 (original_us_air_date VARCHAR2, original_canadian_air_date VARCHAR2)

What is the Original U.S. air-date for the Original Canadian air-date of december 9, 2007?
SELECT original_us_air_date FROM table_name_80 WHERE original_canadian_air_date = "december 9, 2007"
SELECT "original_us_air_date" FROM "table_name_80" WHERE "december 9, 2007" = "original_canadian_air_date"