user: Question: Which network broadcast the game when the Western Bulldogs played Melbourne?
Columns: ['Round', 'Opposition', 'Time', 'Date', 'Home/Away', 'Venue', 'Score', 'Result/Margin', 'Broadcaster', 'TV', 'Ladder Position']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['One', 'Collingwood', '2:10pm', 'Sunday 28 March', 'Home', 'Etihad Stadium', '13.15 (93)-19.15 (129)', 'LOST by 36', 'Seven Network', 'Delayed by 1 hour', '12th']
SQL:

assistant: SELECT "Broadcaster" FROM "Table" WHERE "Opposition" = 'Melbourne';