I'm not generally a fan of "forced" viral videos...
The whole theory of videos "going viral" is based on something special, totally random and generally entertaining to the masses without that being the initial intention... That being said, NBC tackled a tough task and executed it well. Cheers
(from Wiki)
A viral video is one that becomes popular through the process of internet sharing, typically through video sharing websites and email. Viral videos often contain humorous content and include televised comedy sketches, such as The Lonely Island's Lazy Sunday and Dick in a Box, amateur video clips like Star Wars Kid, the Numa Numa videos, The Evolution of Dance, Chocolate Rain on YouTube; and web-only productions such as I Got a Crush... on Obama. Some eyewitness events have also been caught on video and have "gone viral" such as the Battle at Kruger. Humor is often a characteristic of viral videos, but not a defining one. A viral video is any video that's passed electronically, from person to person, regardless of its content. With the proliferation of camera phones, many videos are being shot by amateurs on these devices. The availability of inexpensive video editing and publishing tools allows video shot on mobile phones to be edited and distributed virally, by email or website, and between phones by Bluetooth or MMS. These consumer-shot videos are typically non-commercial, intended for viewing by friends or family. LEER MAS