Table: tv_episode_data_34
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code
u_s_viewers_millions

Question: When 62 is the number in series who is the writer?
SQL: SELECT "written_by" FROM tv_episode_data_34 WHERE "no_in_series" = '62'

Question: When steve holland is the writer what is the air date?
SQL: SELECT "original_air_date" FROM tv_episode_data_34 WHERE "written_by" = 'Steve Holland'

Question: When 231 is the production code what is the title?
SQL: SELECT "title" FROM tv_episode_data_34 WHERE "production_code" = '231'

Question: When there are 5.2 million u.s. viewers how many numbers in series are there?
SQL: SELECT COUNT("no_in_series") FROM tv_episode_data_34 WHERE "u_s_viewers_millions" = '5.2'