user: Question: What number episode in the series was watched by 10.96 million U.S. viewers? 
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [107.0, 1.0, '"The Mastodon in the Room"', 'Ian Toynton', 'Hart Hanson', 'September23,2010', '6AKY01', '9.79']
SQL:

assistant: SELECT "No. in series" FROM "Table" WHERE "U.S. viewers (millions)" = '10.96';