user: Question: Which episode number drew in 3.35 million viewers in the United States?
Columns: ['Series #', 'Season #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [10.0, 1.0, '"Samson and Delilah"', 'David Nutter', 'Josh Friedman', 'September8,2008', '3T7301', '6.34']
SQL:

assistant: SELECT "Series #" FROM "Table" WHERE "U.S. viewers (million)" = '3.35';