Nintendo plans to begin selling its Wii video game console in the United States on Nov. 19, the company said Thursday. The date is a few weeks ahead of its launch in Japan, as it girds for a three-way showdown this holiday-shopping season against Microsoft and Sony. The Japan-based company, once the game industry leader and renowned for its Mario Bros. franchise, plans to sell the Wii in the U.S. for about $250, as expected, with games priced at about $50 each.