user: Question: Which show aired on 19 April?
Columns: ['Show', 'Date', 'Official ratings (millions)', 'Weekly rank', 'Share']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['Auditions 1', '12 April', 9.44, '6', '37.0%']
SQL:

assistant: SELECT "Show" FROM "Table" WHERE "Date" = '19 April';