user: Question: How many million viewers did episode number 63 have?
Columns: ['No.', '#', 'Title', 'Directed by', 'Written by', 'U.S. viewers (million)', 'Rank (week)', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [49.0, 3.0, '" Informed Consent "', 'Laura Innes', 'David Foster', '13.67', 21.0, 'September19,2006']
SQL:

assistant: SELECT "U.S. viewers (million)" FROM "Table" WHERE "No." = 63.0;