user: ### NOW ANSWER:
Question: What was the production code for the episode that debuted October 1, 1993?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'real']
Sample row: [47.0, 1.0, '"Way-Off Broadway"', 'Richard Correll', 'Bob Rosenfarb', 'September 24, 1993', 455453.0]
SQL:

assistant: SELECT MAX("Production code") FROM "Table" WHERE "Original air date" = 'October 1, 1993';