Seventeen’s first variety show appearance was part of their journey to debut, which was documented in a series called “Seventeen Project: Big Debut Plan.” This show aired on MBC from May 2 to May 26, 2015, and it was a reality TV series where the members had to complete missions to earn their chance to debut. The series was a key part of their pre-debut activities, showcasing their hard work and teamwork as they prepared for their official debut.
Before this, Seventeen had appeared in online broadcasts called “Seventeen TV,” which started in late 2012 and continued until their debut. “Seventeen TV” was a way for fans to see the group’s training and personalities before they became famous. It was broadcast on Ustream and included several seasons with different themes and activities.
Seventeen officially debuted on May 26, 2015, with a live showcase and the release of their first EP, “17 Carat.” This marked the beginning of their successful career as a K-pop group known for their self-producing abilities and energetic performances.