The Sochi Winter Olympics are officially underway, and as you may have seen, NBC will once again be providing viewers access to live streaming in a multitude of mediums. On the NBC Olympics page, computer users can enter their cable or digital television provider personal user name and password and watch live video of the events. Mobile viewers can also download the free NBC Live Extra App. The iPhone, Droid and iPad app will have live and recorded events, and on demand HD video. And for the first time, NBC Universal will stream video on Facebook as part of a partnership deal with the social media giant.