[1] The show aired on Thursday at 20:00 (KST) starting from April 25, 2019 until May 30, 2019.
It then went on a hiatus without notice, but returned on July 31, 2019 and aired on every Wednesday at 20:00 (KST).
[2] The show had a hiatus after the episode on November 27, 2019, and returned again starting January 15, 2020 to August 26, 2020.
The show made another return beginning March 10, 2021, as a new season, and concluded on September 29, 2021.
The "TMI" in the show's name stands for Thursday Mnet Idol.