What is the original air date for episode 4? 
CREATE TABLE table_23399481_3 (original_air_date VARCHAR, season__number VARCHAR)
SELECT original_air_date FROM table_23399481_3 WHERE season__number = 4
### Context: CREATE TABLE table_23399481_3 (original_air_date VARCHAR, season__number VARCHAR) ### Question: What is the original air date for episode 4?  ### Answer: SELECT original_air_date FROM table_23399481_3 WHERE season__number = 4