Matsushita, the maker of Panasonic brand electronics, said it hoped to start selling the world's largest plasma television by early next year. Measuring 2.4 metres by 1.4 meters and weighing 215 kg, <A HREF="http://news.yahoo.com/s/nm/20060710/tc_nm/japan_matsushita_dc">the 103-inch panel</A> is bigger than a double-sized mattress and almost as heavy as an upright piano.