user: Question: What is the original air date of the episode that was watched by 0.88 million U.S. viewers? 
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (million)']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '"Pilot"', 'Bill Condon', 'Darlene Hunt', 'August16,2010', '1.16']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "U.S. viewers (million)" = '0.88';