human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: No. in series, No. in season, Title, Directed by, Written by, Original air date
###Question:  what's the original air date where written by is iain morris & damon beesley
gpt
SELECT Original air date FROM table WHERE Written by = Iain Morris & Damon Beesley