Viral Ads and ROI

The company that I interned with was in the midst of putting together a product launch this past summer. They made three videos for Youtube and were able to get over a million hits for one. See it here: http://www.youtube.com/watch?v=mv9GDp0G3oE All things being equal, do you think that the views of TV ads and Youtube ads have the same value? If not, which is better?