user: Question: What episode number in the series is "Millennium"?
Columns: ['Series #', 'Season #', 'Title', 'Director', 'Writer', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [117.0, 1.0, '"Such a Time as This"', 'Martha Mitchell', 'Martha Williamson', 'September26,1999']
SQL:

assistant: SELECT "Series #" FROM "Table" WHERE "Title" = '"Millennium"';