Table: tv_show_ratings_10
Columns: episode_no
airdate
total_viewers
share
bbc_one_weekly_ranking

Question: What's the average total viewers that has 17.6% Share?
SQL: SELECT AVG("total_viewers") FROM tv_show_ratings_10 WHERE "share" = '17.6%'

Question: What's the share of Episode 1?
SQL: SELECT "share" FROM tv_show_ratings_10 WHERE "episode_no" = 1