[1] The program shows the South Korean K-pop boy group Seventeen before their official debut in the entertainment industry.
[3][4][5] First season The first official broadcast of TV Seventeen happened in January 2013 (however, in late 2012 they did a Christmas special).
In the early part of this season, the names of the members who participated were not known, so they were called by nicknames according to something that they carried.
[7] This season, they began to prepare for the first Like Seventeen concert, and so were separated into teams that were differentiated by the color of the shirts they wore.
[10] Fifth season During the hiatus of Seventeen TV, Dongjin, Doyoon and Mingming all left the lineup (without stated reasons, but possibly a "secret trial" elimination); following this, new member The8 was introduced.