As you watch all four in sequence, you can't help but note that the animation falls into one of three categories. Scenes are either:
1) reused in its totality from commercial to commercial;
2) totally unique to that specific commercial;
3) reused with some adjustments for the dialogue specific to that commercial.
I will be talking in future posts about the reality of how to get the biggest bang for the animation dollar when trying to produce a quality piece. There's much more to it than just drawing quickly and putting in long hours hunched over your drawings.