@VideCorSpoon,
That last one, as far as I can tell, may not have made it to regular TV hours--
Ajinomoto Stadium. The first one) requires knowledge of sound word usage and kid show dancing styles--
and then a good foundation in Japanese humor. That third person who comes on barefooted in a kind of loose dress in a TV personality who appears mostly on comedy studio shows, and dances just like that while kind of singing and joking...obviously her agent landed her that job.
The three point trend you have pointed out, does fit a certain class of TV CMs, and as in that second one, is often based in part on one
manzai (stand-up) comic genre, but more CMs are not of that particular class, and do not fit the trend.
The TV CMs I don't mind seeing over and over again, are those like the second class. Some have a little deeper plot to them, and that's interesting to ponder over. Most, as any could guess, are like most CMs, brain-deadening.
Great links there ! KJ