user: Question: What episode featured entrepreneur Richard Ernest?
Columns: ['Episode', 'First aired', 'Entrepreneur(s)', 'Company or product name', 'Money requested (£)', 'Investing Dragon(s)']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Episode 1', '11 August 2013', 'Kate Cotton and Louise Ferguson', 'Skinny Tan', '60,000', 'Piers Linney and Kelly Hoppen']
SQL:

assistant: SELECT "First aired" FROM "Table" WHERE "Entrepreneur(s)" = 'Richard Ernest';