Table: tv_episode_viewers
Columns: series_no
season_no
title
directed_by
written_by
original_air_date
u_k_viewers_million

Question: When did the episode titled "The Fashion Show" air for the first time?
SQL: SELECT "original_air_date" FROM tv_episode_viewers WHERE "title" = '"The Fashion Show"'

Question: What's the series number of the episode with season number 2?
SQL: SELECT MIN("series_no") FROM tv_episode_viewers WHERE "season_no" = 2

Question: What's the series number of the episode seen by 2.43 million viewers in the UK?
SQL: SELECT "series_no" FROM tv_episode_viewers WHERE "u_k_viewers_million" = '2.43'

Question: How many different original air dates does the episode with series number 13 have?
SQL: SELECT COUNT("original_air_date") FROM tv_episode_viewers WHERE "series_no" = 13