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

### Instruction:
When was the film released that a less than 5038 production number and was of the character Bosko?

### Inputs:
table_name: table, columns: ['Title', 'Series', 'Characters', 'Production Num.', 'Release date']

### Response:
SELECT Release date FROM table WHERE Production Num. < 5038 AND Characters = bosko