Here's how to watch the 2012 Olympics Opening Ceremony via free online live stream on your computer, Apple iPhone or iPad or other devices.

The London Games Opening Ceremony will be seen by an estimated billion people around the world, but don't miss out just because you may not be near your TV when the celebration is underway.

Simply click this link to be taken to NBC's special livestream website, which is equipped with a free live-streaming feature that will allow you to watch all the Olympic events live as they take place in London over the next month. That includes the 2012 Olympics Opening Ceremony, which is costing about 27 million British pounds and starts Friday at 4 p.m. EST.

Once you click the link, all you have to do is enter the information about your TV provider and subscription level, and if you have a "a cable, satellite or telco TV subscription that includes MSNBC and CNBC, you can access live streams of every Olympic event," according to NBC's live-streaming site.

The 2012 Olympics Opening Ceremony, dubbed "Isles of Wonder" brings together the world's best athletes, leaders from all reaches of the earth and dedicated sports fans in one massive spectacle.

According to the 2012 Olympics Opening Ceremony's official website,"the Opening Ceremony is a celebration showcasing the best of the host nation. It also features a parade of all competing nations and the highly anticipated entrance of the Olympic flame, which ignites the cauldron and signals the start of the Games." 

This year's three-hour Olympics Opening Ceremony "will kick off with the sound of the largest harmonically tuned bell in Europe, produced by the Whitechapel Foundry, and the stadium will be transformed into the British countryside for opening scene 'Green and Pleasant', which includes real farmyard animals. The ceremony will also include a special sequence celebrating the best of Britain, featuring volunteer performers," according to the London Olympics website.

NBC has also provided an easy-to-use schedule to help you once you know what day the big events are slated to take place, and when your favorite sport will be played at the 2012 Olympics. Simply click on this link for a day-by-day breakdown of the 2012 Olympics schedule, which will also tell you what TV channels will be broadcasting which events, in case you don't watch to watch the entire London Games on your iPad.

Though some football (soccer to Americans) matches have already been played, and there will be some archery on Friday prior to the London Games Opening Ceremony, Saturday is when the competition really begins, as the first full daily slate of sporting competitions will take place, with everything from volleyball and tennis to swimming and basketball kicking off all on the same day.

The first medals will also be awarded on Saturday, in athletics, cycling, fencing, judo, shooting, swimming and weightlifting.

Then it's more than two weeks of world-class sports, as every day up to and including Aug. 12 will feature a variety of events, culminating in the Closing Ceremony on Aug. 12.

The Summer Olympics are being broadcast exclusively on the full range of NBC channels in the U.S., while in England they will be shown on the BBC's various channels.

full breakdown of what channels will be hosting the London Summer Games in your home country can be accessed by clicking this link.