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_27077 ( "Episode" real, "Stage" text, "Celebrities" text, "Directed and produced by" text, "Original airdate" text, "Viewers (overnight estimates)" text )

### Question ###
List the director and producer when Nick Hewer and Saira Khan were starring.

### Accurate SQL ###

SELECT "Directed and produced by" FROM table_27077 WHERE "Celebrities" = 'Nick Hewer and Saira Khan'