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

### Instruction:
how many series had 6.55 u.s. viewers (million) and were directed by pete michels

### Inputs:
table_name: table, columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']

### Response:
SELECT COUNT No. in series FROM table WHERE U.S. viewers (million) = 6.55 AND Directed by = Pete Michels