Big changes are afoot at video streaming and DVD-by-mail service Netflix. It's splitting the business in two, with the Netflix half focusing solely on internet video streaming and a new company, Qwikster, handling the old school shipment of DVDs and Blu-ray discs by mail. It's also about to start renting video games. » 9/19/11 2:00am 9/19/11 2:00am