Radio Taiso (ラジオ体操) is as core to growing up in Japan as the Pledge of Allegiance is to an American. Before school, kids are lead through these exercises which have been a standard for years. Wikipedia says that Radio Calisthenics was something actually imported from the US where the MetLife was broadcasting a 15 minute exercise routing during the 1920s.
Here is your plain, vanilla, NHK-approved Radio Taiso video.
Because it’s so universal, there are endless parodies. Here are a few I found.
and my favorite, Salaryman Taiso
Bonus Video – Japanese Precision Walkers