Table: tv_episode
Columns: no
title
directed_by
written_by
bens_location
original_air_date
u_s_viewers_million

Question: What was the original air date for the episode with 3.90 u.s. viewers (millions)?
SQL: SELECT "original_air_date" FROM tv_episode WHERE "u_s_viewers_million" = '3.90'

Question: What is the original air date for no. 2?
SQL: SELECT "original_air_date" FROM tv_episode WHERE "no" = 2

Question: Who directed "hot and bothered"?
SQL: SELECT "directed_by" FROM tv_episode WHERE "title" = '"Hot and Bothered"'

Question: Who directed the episode with 3.19 million u.s. viewers?
SQL: SELECT "directed_by" FROM tv_episode WHERE "u_s_viewers_million" = '3.19'