user: Question: If the episode was written by Tim Balme, what was the original air date?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [14.0, 1.0, '"Thy Name Is Woman"', 'Simon Bennett', 'James Griffin & Rachel Lang', '5September2006']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Written by" = 'Tim Balme';