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

### Instruction:
What is the title of the episode whose original airdate is April 23, 2010?

### Inputs:
table_name: table, columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original airdate', 'Production code']

### Response:
SELECT Title FROM table WHERE Original airdate = April 23, 2010