Table: tv_episode_data_15
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
u_s_viewers_millions

Question: How many millions of U.S. viewers watched the episode directed by Allison Liddi-Brown? 
SQL: SELECT "u_s_viewers_millions" FROM tv_episode_data_15 WHERE "directed_by" = 'Allison Liddi-Brown'

Question: What number episode in the season was titled "Dead on Arrival"?
SQL: SELECT MAX("no_in_season") FROM tv_episode_data_15 WHERE "title" = '"Dead on Arrival"'

Question: What was the title of the episode that had 13.82 million U.S. viewers? 
SQL: SELECT "title" FROM tv_episode_data_15 WHERE "u_s_viewers_millions" = '13.82'