Sony Corp.'s domestic television sales may exceed its estimate, helped by government incentives to buy energy-saving home appliances, an executive said Thursday.

"Since the start of the Eco-point program in May, television sales have been extremely positive," said Nobuki Kurita, president of Sony's marketing unit. The company's sales of televisions in Japan in the year to next March "will probably exceed our original plan," he said.

Sales of flat-panel TVs increased 30 percent in July from a year earlier, the biggest gain in the past two years, research company BCN Inc. said Aug. 5. The number of sets sold that month rose 54 percent. Sony ranked fourth by shipments after Sharp Corp., Toshiba Corp. and Panasonic Corp., according to BCN.