Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_11951237_1 (production_code INTEGER, original_air_date VARCHAR)

### Question ###
What is the production code for the show that aired on October 27, 1994?

### Accurate SQL ###

SELECT MAX(production_code) FROM table_11951237_1 WHERE original_air_date = "October 27, 1994"