The problem is that viral is a consequence rather an action. The best one can do is create something that has inherent value – whether through knowledge or entertainment – and if it’s good and worthy it will be shared. It matters not if it is filmed on HD, SD or an old reel to reel tape.
And it is this basic point that annoys me about the question because it is trying to put the technology ahead of the content (again) and the viral element isn’t the technology. The technology is merely a conduit, a facilitator to both capturing it and sharing it but it’s not what makes it a viral.
Rant over, onwards to Xmas parties!