user: Question: What is the original airdate when the season number is 4?
Columns: ['Series #', 'Season #', 'Title', 'Directed by:', 'Written by:', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [66.0, 1.0, '"Joey"', 'Harry Gerstad', 'David Chantler', 'February 18, 1956']
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Season #" = 4.0;