user: ### NOW ANSWER:
Question: What was the original air date of an episode set in 1544?
Columns: ['No. in series', 'No. in season', 'Title', 'Setting', 'Directed by', 'Written by', 'U.S. viewers (million)', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [29.0, 1.0, '"Moment of Nostalgia"', 'Summer 1540', 'Dearbhla Walsh', 'Michael Hirst', '0.88', 'April11,2010']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Setting" = '1544';