Table: brit_talent_ratings_2
Columns: show
date
official_ratings_millions
weekly_rank
share

Question: When were the shares 39.1%?
SQL: SELECT "date" FROM brit_talent_ratings_2 WHERE "share" = '39.1%'

Question: Which show aired on 19 april?
SQL: SELECT "show" FROM brit_talent_ratings_2 WHERE "date" = '19 april'