At Comic-Con, TV Guide hosted a panel that borught together a number of stars from genre shows, among them "V"'s Scott Wolf. The video below goes behind the scenes of that panel.
The perfect way to get a sense of some of the differences between the original "V" and the new version is to look at the promos created for them. What follows is an NBC overview look at "V" from the 1980s, and the recently-released ABC promo for the new show.