Table: tv_series_stats
Columns: no_in_series
title
directed_by
written_by
original_air_date
production_code
u_s_viewers_million

Question: Which episode did 18.74 million people tune in?
SQL: SELECT "title" FROM tv_series_stats WHERE "u_s_viewers_million" = '18.74'

Question: Which prod code was series 11?
SQL: SELECT "production_code" FROM tv_series_stats WHERE "no_in_series" = 11