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

### Instruction:
What was the original air date where there were u.s. viewers (millions) is 5.60?

### Inputs:
table_name: table, columns: ['Series no.', 'No. in season', 'Title', 'Written by', 'Directed by', 'Original air date', 'U.S. viewers (millions)']

### Response:
SELECT Original air date FROM table WHERE U.S. viewers (millions) = 5.60