Seriously, how do you know when a play ends?
You should try watching Rugby League. They are the pro-league in England and the major rugby league competition in Australia.
It’s a lot closer to American Football, where a tackle ends a play which you have a limited number of them like downs in American Football. So a drive might end with a try (touchtown), or a field goal attempt or just a punt.
I love both variations of Rugby, but the Rugby league code might be a good way to get into Rugby for an American familiar with the American code.
Go Brisbane Lions.
Short sample from a state of Origin game - The biggest Rugby League event of the season. State of Origin is between Queensland and New South Wales and is a massive rivalry. Sort of like an annual Australian rugby superbowl between two major rivals.
http://www.youtube.com/watch?v=8EwUavS48K8&feature=related
Dfwgator - Congratulations in finishing above us this season :) Our club is truly in a mess at the moment.
Cheers.