Whisk tomato sauce, barbecue sauce, worcestershire sauce, sugar, seasoning and salt and pepper in a jug.
Place chicken in a large, shallow ceramic dish. Pour over marinade and turn to coat. Cover and refrigerate, turning occasionally, for at least 2 hours. Preheat oven to 200c. Line 2 baking trays with baking paper. Place chicken in a single layer on 1 tray. Roast chicken turning once, for 25 to 30 minutes or until crisp and golden. serve with salad and potato wedges.