user: Question: When did the episode seen by  is 2.267 million people get aired?
Columns: ['#', 'Episode', 'AU Air Date', 'Timeslot', 'Viewers (m)', 'Nightly Rank (#)', 'Weekly Rank (#)']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: [1.0, '"Aussie Bob & Kiwi Terry"', '9 February 2009', '8:30pm Monday', '2.582', 1.0, 1.0]
SQL:

assistant: SELECT "AU Air Date" FROM "Table" WHERE "Viewers (m)" = '2.267';