user: Question: What date was the match at MCG played?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '25.21 (171)', 'St Kilda', '17.10 (112)', 'MCG', 24122.0, '27 August 1977']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Venue" = 'MCG';