user: Question: How many episodes had a viewership of 2.65 million?
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, '"Touch Me I\'m Going to Scream, Part 1"', 'Stuart Gillard', 'Mark Schwahn', 'September1,2008', '3T7551', '3.25']
SQL:

assistant: SELECT COUNT("No. in season") FROM "Table" WHERE "U.S. viewers (millions)" = '2.65';