

SEVENTEEN also appeared in the reality TV show Seventeen Project: Big Debut Plan, broadcast on MBC between May 2–26, 2015, where the members had completed missions while being split into a hip-hop unit, a vocal unit, and a performance unit. Between 2012-2013, the group lost four of its members: Doyun, Mingming, Dongjin and Samuel. The show started broadcasting in December 2012 with and ended in August 2014 with five seasons.

The TV show, Seventeen TV will show the members of the group going through their training and debut preparations as well as their everyday lives. In December 2012, it was announced that a seventeen member boy group will soon debut under the name SEVENTEEN with 17 members and an average age of 17. Please help by adding appropriate references. This article or section is missing sources and may contain inaccurate and unverified info.

1.3 2016: First 'Love & Letter', First Asia Tour and Going Seventeen.1.2 2015: Debut with 17 Carat, Boys Be and "Q&A".
