Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22815 ( "Episode title" text, "Subject" text, "Music by" text, "Lyrics by" text, "Performed by" text, "First aired" text )

### Question ###
What is the date for the episode performed by Sue Manchester?

### Accurate SQL ###

SELECT "First aired" FROM table_22815 WHERE "Performed by" = 'Sue Manchester'