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_2818164_4 ( no_in_series INTEGER, directed_by VARCHAR, original_air_date VARCHAR )

### Question ###
What is the series number for the episode directed by jay sandrich that aired October 23, 1986?

### Accurate SQL ###

SELECT MIN(no_in_series) FROM table_2818164_4 WHERE directed_by = "Jay Sandrich" AND original_air_date = "October 23, 1986"