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_23122988_1 (airdate VARCHAR, headliner VARCHAR)

### Question ###
What date did the show air when Rhod Gilbert was the headliner?

### Accurate SQL ###

SELECT airdate FROM table_23122988_1 WHERE headliner = "Rhod Gilbert"