Who directed the episodes that aired December 15, 1956? 
CREATE TABLE table_25800134_1 (director VARCHAR, airdate VARCHAR)
SELECT director FROM table_25800134_1 WHERE airdate = "December 15, 1956"
### Context: CREATE TABLE table_25800134_1 (director VARCHAR, airdate VARCHAR) ### Question: Who directed the episodes that aired December 15, 1956?  ### Answer: SELECT director FROM table_25800134_1 WHERE airdate = "December 15, 1956"