The 2012 London Olympics have technically already kicked off with several soccer matches already in the books, but the official Opening Ceremony is coming on Friday evening.
Most events during the Olympics will only be available on tape delay from NBC if you happen to be watching on television rather than on your computer, and the Opening Ceremonies will be no exception. Though it will be taking place at 4 p.m. ET -- which translates to 9 p.m. local time -- NBC will be starting their official coverage of the event at 7:30 p.m.
Other events in the Olympics can be accessed live only if you go to NBCOlympics.com live, assuming that your connection meets the restrictions in place on the site, but the opening ceremony will not be among the events being shown live.