Pineapple-Citrus Punch
["3 c. pineapple juice, chilled", "3 c. orange-grapefruit juice, chilled", "1 qt. lemon-lime carbonated beverage, chilled", "1 c. lime or lemon sherbet"]
["Mix juices and carbonated beverage in large punch bowl.", "Spoon scoops of sherbet into bowl.", "Serve immediately.", "Makes 19 servings (about 1/2 cup each)."]
["pineapple juice", "orange-grapefruit juice", "lemon-lime", "lime"]