Season 1

101 female trainees from 46 agencies compete for a place in a 11-member project group.

episodes

1.Agency Evaluations

Jan 22, 201685m

2.“Pick Me” Re-evaluation

Jan 29, 201686m

3.Group Battle (1)

Feb 5, 2016105m

4.Group Battle (2)

Feb 12, 2016105m

5.First Elimination

Feb 19, 201696m

6.Position Evaluation (1)

Feb 26, 2016101m

7.Position Evaluation (2)

Mar 4, 2016106m

8.Second Elimination and Concept Evaluation Preparations

Mar 11, 2016119m

9.Concept Evaluation

Mar 18, 201695m

10.Third Elimination and Debut Evaluation Preparations

Mar 25, 201684m

11.Live Finale: I.O.I Is Formed

Apr 1, 2016160m