user: Question: What episode number in the season had 1.05 million U.S. viewers?
Columns: ['Series No.', 'Episode No.', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [9.0, 1.0, '"Escape from the Dungeon!"', 'Alan Taylor', 'Jonathan Ames', 'September26,2010', '1.05']
SQL:

assistant: SELECT "Episode No." FROM "Table" WHERE "U.S. viewers (millions)" = '1.05';