

Special Guest: Jang Sung-kyu, Lee Young-ae (via phone)

Kim Hee-chul appeared as a transfer student Super Junior ( Leeteuk, Yesung, Shindong, Eunhyuk, Donghae) Park Mi-sun, Jo Hye-ryun, Jang Do-yeon, Hong Jin-young, Lee Tae-im, Han Sun-hwa Taeyang ( Big Bang), Song Min-ho ( WINNER) Special Guests: Turbo (Kim Jung-nam, Mikey) Special Guest: Jang Sung-kyu (voice only) Special EP: "Promise fulfillment for achieved 5% ratings" Special Guest: Kim Ae-sook (Kim Young-chul's older sister) Park Mi-sun, Jo Hye-ryun, Sol Bi, Hong Jin-young, Oh Na-mi, Cao Lu ( Fiestar), Yoon Chae-kyung ( April) Special EP: "Ultimate high school matchup" Special Guests: Lee Sang-jun (composer), Momo ( Twice), Taeyeon ( Girls' Generation) (via phone), AOA ( Seolhyun, Hyejeong) (via phone) Kim Hee-chul and Min Kyung-hoon appeared as transfer students Special EP: "Duet Project: Universe Cowards" Hwang Woo-seul-hye, Kyuhyun ( Super Junior)Ĭhoo Sung-hoon, Yuri ( Girls' Generation) Special Guest: Jang Sung-kyu, Ryu Hwa-young (via phone) Park Mi-sun, Jo Hye-ryun, Sol Bi, Hong Jin-young, Park Na-rae, Heo Young-ji, Jo Jung-min Special EP: "Brothers Club VS Sisters Club" Press Conference for achieving the 3% ratings

Kim Jong-hyun ( Shinee), Irene ( Red Velvet) Special Guests: Jang Sung-kyu, 80 staff members, Kim Chae-rinĪndy ( Shinhwa), Sunny ( Girls' Generation) Jun Hyo-seong ( Secret), Gyeongree ( Nine Muses) The only time the guest appeared as a teacher Sol Bi, Hong Jin-young, Hello Venus (Except: Yooyoung) Special Guest: Kim Tae-hyun (Prime Kings) Lee Guk-joo, Kim Ji-min, Lady Jane, Jo Young-gu Special Guests: Han Suk-joon, Ahn Na-kyung Park Mi-sun, Jo Hye-ryun, Lee Ji-hye, Shin Bong-sun, Park Seul-gi Substitute for Kim Hee-chul: Henry ( Super Junior-M) Special Guests: Lee Min-ji, Kim Jeong-jin, Kim Ye-rin, So A-reum, Park A-reum, Park Se-jin, Han Ho-jeong Kim Se-hwang's last episode as a regular cast Hwang Chi-yeul's last episode as a regular cast (EP.6) Special Guests: Park Hee-geon, Lim Hyeong-chan (EP.6) As of July 10, 2021, 288 episodes of Knowing Bros have been aired. Knowing Bros first aired on December 5, 2015. This show is classified as a reality television- variety show, where the cast members and guests gather in a classroom environment and discuss personal topics and further play various games. Knowing Bros ( Korean: 아는 형님 RR: Aneun Hyeongnim), also known as Men on a Mission or Ask Us Anything, is a South Korean variety show, distributed by JTBC every Saturday.
