user: Question: what is the most # that aired on September 29, 2008?
Columns: ['#', 'Episode', 'Air Date', 'Timeslot', 'Viewers', 'Weekly Rank for Living']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '"Pilot"', 'September 22, 2008', 'Monday, 10:00pm', '238,000', '4']
SQL:

assistant: SELECT MAX("#") FROM "Table" WHERE "Air Date" = 'September 29, 2008';