P257 CEEFAX 257 Sun 22 Dec 22:44/31        Buys until December 25   Christmas turkeys may well weigh down the table this year but should not lighten the pocket too much, especially the frozen oven-ready variety. Red meats are little changed but prime beef cuts are commanding high prices. Among vegetables, calabresj (broccoli heads) and cauliflowers are both cheaper than last Christmas. Carrots, onions, parsnips, leeks and swedes are all reasonably priced. Comice pears and top quality Cox's apples are best of the fruits. Fruit and vegetable prices 259