What date did the show air when Rhod Gilbert was the headliner?
CREATE TABLE table_23122988_1 (airdate VARCHAR, headliner VARCHAR)
SELECT airdate FROM table_23122988_1 WHERE headliner = "Rhod Gilbert"
### Context: CREATE TABLE table_23122988_1 (airdate VARCHAR, headliner VARCHAR) ### Question: What date did the show air when Rhod Gilbert was the headliner? ### Answer: SELECT airdate FROM table_23122988_1 WHERE headliner = "Rhod Gilbert"