There are few guarantees in the Olympics, but one that you can bet your life on is that viewers will be inundated with Olympic-themed ads. Few companies do this better than Visa, who brought back the world's best voice to give life to their ads: Morgan Freeman.
Though it doesn't bring the tears about quite like the Derek Redmond ad from 2008, it still evokes what makes us love the Olympics, "The power, the grace, the magical and the miraculous."
UPDATE: It turns out Visa did produce an ad that is guaranteed to make you cry. Only click on this link if you're not concerned about tears running down your face.