In a large bowl, mix 1 cup boiling water with 2 small packages or 1 large package orange Jello. Stir until Jello is dissolved. Add (2) 11-oz. cans drained mandarin oranges, and stir well. Add 8 oz. can drained crushed pineapple, and stir well. Next, stir in 1 pint partially thawed orange sherbet. Finally, gently fold in 4 to 4 1/2 oz. frozen whipped topping, thawed. Pour entire mixture into a nice serving bowl. Cover with plastic wrap, and refrigerate until salad is jelled. Serve by spooning a serving onto a nice salad plate. This salad looks nice served on a green lettuce leaf. I hope you enjoy this recipe! Have a beautiful day!