Table: tv_episode_stats_4
Columns: no
title
directed_by
written_by
u_s_viewers_million
original_air_date
production_code

Question: how many millions of north american viewers had the episode called "smother"? 
SQL: SELECT "u_s_viewers_million" FROM tv_episode_stats_4 WHERE "title" = '"Smother"'

Question: what is the number of  the episode in the season whose production code is 101? 
SQL: SELECT COUNT("no") FROM tv_episode_stats_4 WHERE "production_code" = 101