Bake potatoes at 425° for 45-60 minutes or until soft. Cut a lengthwise slice from the top of the potatoes. Scoop out pulp and place in bowl. Mash potatoes; add sour cream, butter, salt, pepper, onions, broccoli and 3/4 cup cheese. Refill potato shells; top with remaining cheese and sprinkle with paprika. Bake at 425° for 20-25 minutes or until heated through.