user: Question: what is the original air date for production code 216?
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', 'real', 'text']
Sample row: [27.0, 1.0, '"Charlie is 2!"', 'Bob Koherr', 'Erika Kaestle & Patrick McCarthy', 'February20,2011', 202.0, '4.2']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Production code" = 216.0;