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Olympics Opening Ceremony 2016 Live Stream: Mobile-Friendly Viewing Info

Action is already underway at the 2016 Summer Olympics in Rio de Janeiro, but the event doesn't formally commence until Friday's opening ceremony.

Although the ceremony begins at 7 p.m. ET, NBC Sports Group chairman Mark Lazarus confirmed to Philly.com's Jonathan Tannenwald that the network won't air the presentation until 8 p.m. ET. Fans who plan on live-streaming the opening ceremony can watch on the NBC Sports app.

So far, the Olympics haven't gotten off to a rousing start.

This isn't the first year infrastructure and security concerns were dominant storylines in the buildup to an Olympics.