user: Question: How many million U.S. viewers wtched episode 69 of the series?
Columns: ['Series #', 'Episode #', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (millions)']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [68.0, '1', '"The Third Wheel Gets the Grace"', 'James Burrows', 'David Kohan & Max Mutchnick', 'September27,2001', '20.6']
SQL:

assistant: SELECT "U.S. viewers (millions)" FROM "Table" WHERE "Series #" = 69.0;