Question: What date did the show air when Rhod Gilbert was the headliner?
SQL: SELECT "Airdate" FROM "1-23122988-1" WHERE "Headliner" = 'Rhod Gilbert';

Question: What date did the show air when Sean Lock was the headliner?
SQL: SELECT "Airdate" FROM "1-23122988-1" WHERE "Headliner" = 'Sean Lock';

Question: Who were the comedians on episode 1x03?
SQL: SELECT "Comedians" FROM "1-23122988-1" WHERE "Episode" = '1x03';

Question: What episode took place in Belfast Waterfront Hall?
SQL: SELECT "Episode" FROM "1-23122988-1" WHERE "Location" = 'Belfast Waterfront Hall';

Question: Who were the comedians during the episode located in Birmingham Hippodrome?
SQL: SELECT "Comedians" FROM "1-23122988-1" WHERE "Location" = 'Birmingham Hippodrome';