Korean broadcast stations play the Korean national anthems at least once per day , although that is usually around 5am or so when not too many people are watching.
That tradition comes from the old days. Korea was not a rich country so it didn't have the electricity to run a whole day broadcast schedule until 1990s so every day the tv stations broadcast around 5am-10am then around 5pm-12pm.
So every time the broadcast stopped the Korean national anthem was played, and that tradition has stuck.
Not surprisingly the video clip which accompanies the anthem tends to have what the Koreans think is important.
People like BTS, Son Heungmin (a soccer player) or the director of the Oscar winner Parasite, etc are often featured nowdays, and apparently while the Senior Singer is popular among the locals, those who make the clips do not consider her to represent Korea since she is not one of the people who contributed to the worldwide expansion of KPop.
The above clip features BTS, but 6 of them since Suga was absent because of a shoulder injury.
A perf in Japan , where Jimin sings Suga's part
6 people perf in the SBS year end show, Suga represented by a snowman
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The outrage on Suga in Korea is quite great.
I am not going to talk about who is behind that, or the incompetence of Hybe to deal with this, etc.
I personally think it might have to go Suga-free in its Korean perfs or concerts.
People do not forget that easily, and Suga might be featured in foreign concerts where people care less, but in Korea it will create a huge shitstorm in Korea.
Also, the Senior Singer , the ultimate nemesis of BTS, has upped the ante by putting 108,000 into her Soccer Stadium concert.
The Senior Singer , while likely to do dramas next year and not release an album, might try for the ultimate, going for a full stadium concert next year which would put around 130,000-150,000 , which beats BTS' record of Speak Yourself Seoul concert of 129,000, a 3 day affair at the Olympic Stadium which is offline until 2031.
The Domesticist who sang her first Kpop song in her 11th year (bbibbi, 2018) now beats the Greatest Act of the World.
To have any chance of beating that in Seoul, BTS might have to go Suga-free in Korea.