Amazon to launch TV box for Xmas, which entered the gadget-making business with the Kindle e-reader, intends to sell a set-top box that can stream internet content to televisions in time for the holidays, the Wall Street Journal reported last night. The internet retailer has approached media software developers as well as cable television providers in recent weeks, hoping to secure content partners for the device by mid-October, the newspaper reported, citing people briefed on the company’s plans. Amazon did not immediately respond to a request for comment.