Umm... well, the dancing in this competition is exactly the same as it was the previous year, which was exactly the same the previous years. The main difference is that real social dancers no longer compete because they will be eliminated for dancing musically and at the spur of the moment. The dancing now is preplanned with cool looking moves that judges seem to be impressed by. So it really doesn't matter when or which of these videos we are talking about because it's exactly the same. Just like McDonald's, a hamburger in New York will taste the same in Buenos Aires. It's pretty horrendous because what I hear and see are two totally different things. Watching AND listening induces a dizzying array of cognitive dissonance which can only be resolved by not watching it.