Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many production codes were there for the episode that aired on November 15?

### Inputs:
table_name: table, columns: ['Episode #', 'The Wørd', 'Guest', 'Introductory phrase', 'Original airdate', 'Production code']

### Response:
SELECT COUNT Production code FROM table WHERE Original airdate = November 15