Table: episodes_41
Columns: no
col
title
directed_by
written_by
original_air_date
production_code
u_s_viewers_million

Question: Who wrote the episode with the code xle05012?
SQL: SELECT "written_by" FROM episodes_41 WHERE "production_code" = 'XLE05012'

Question: what are the numbers of episodes that had 0.79 million US views?
SQL: SELECT "col" FROM episodes_41 WHERE "u_s_viewers_million" = '0.79'