user: Question: What is Date, when Viewers is 4.4 million?
Columns: ['Event', 'Date', 'Rating', 'Share', 'Viewers']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Event', 'Date', 'Rating', 'Share', 'Viewers']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Viewers" = '4.4 million';