<Ul> <Li> Lee Hyun - woo could not participate in the show when it was picked up on Happy Sunday due to conflicting schedule . </Li> <Li> Yoo Ho - jeong was the original narrator for episode 1 and 2 of the Chuseok Special, there was no narrator for episode 3 of the special episodes . </Li> <Li> Tablo and his daughter Haru joined the cast starting from episode 1 of season 1 to replace Lee Hyun - woo's spot . </Li> <Li> Chae Sira became the narrator starting from season 1, her last episode was the 27th . Chae decided to leave the show due to her conflicting schedule . </Li> <Li> Kim Jung - tae and his son Ji - hoo (Yakkung) guest starred on episodes 20 and 21 as part of Jang Hyun - sung's segment, the two were invited to officially join the cast because of the show's extended time slot . </Li> <Li> Shin Ae - ra took over as narrator starting from episode 28 . She was approached to join the show because of her reputation as a caring mother in real life . </Li> <Li> Kim Jung - tae and his son Yakkung opted to leave the show following controversy of them attending a campaign rally for a local politician . Episode 31 is their last . </Li> <Li> Jang Yoon - jung and Do Kyung - wan will be guest cast from episode 32 . They will fill the spot left open by the departure of Kim Jung - tae and his son Yakkung . The couple will chronicle the birth of their son . </Li> <Li> Jang Hyun - sung's agency announced on June 24, 2014 that the actor and his sons would be leaving the show due to conflicting schedule with filming his drama Ceci Bon and movie Love Wins . He and his family last appearance is episode 33 . </Li> <Li> Song Il - kook was announced on June 25, 2014 to be joining the cast of Superman along with his triplet sons . Their first episode will air on July 6 . </Li> <Li> It was announced on July 20 that Shin Ae - ra would be stepping down as the narrator of the show to concentrate on her studies in the United States . Her last episode will be the 37th . Heo Su - gyeong, who previously guest starred on the show will be taking over as the narrator . </Li> <Li> On December 1, 2014, Tablo and his daughter Haru announced that both will be leaving the show due to Tablo's conflicting schedule with promoting his music career and filming the show . Episode 58 will be their last . </Li> <Li> Actor Uhm Tae - woong was announced on December 1, 2014 to be joining the show with his daughter Uhm Ji - on . The new father / daughter duo will be taking the place of exiting cast family Tablo and Haru . </Li> <Li> A press release was issued on January 6, 2015 announcing actress and wife of Sean from Jinusean, Jung Hye - young as the narrator of the show starting from episode 60 . No reason was given for the exiting of most current narrator Heo Su - gyeong . </Li> <Li> On July 13, 2015 KBS confirmed professional soccer player Lee Dong - gook will be joining the cast part - time with his five children . </Li> <Li> On October 14, 2015, the shows PD Kang Bong Kyu, confirmed that actor Uhm Tae - woong and his family will be leaving the show so that he and his wife can concentrate on the main careers as an actor and ballerina . When Uhm Tae - woong's wife Yoon Hye - jin, appeared on the variety show "Taxi" in November 2015 she further clarified another reason was that they didn't want Jion growing up in the spotlight thinking she was privileged . </Li> <Li> On December 21, 2015, KBS announced that Song Il - gook and the triplets will be leaving the show for an undisclosed reason . Episode 116 will be their last . </Li> <Li> On December 9, 2015 the PD's of the show confirmed that actor Ki Tae Young had started filming for show . His family replaces Uhm Tae Woong's who had recently left the show . </Li> <Li> On January 27, 2016, it was confirmed that actor Lee Beom - soo would be joining the show . His family will be taking over the slot of Song Il - gook's family after they leave the show sometime in February . </Li> <Li> In later February 2016 an insider informed the media that Choo Sung Hoon and his daughter Sarang would be leaving the show . PD of the show did not confirm the news because Choo and his family did not finish filming yet . On February 28, 2016 it was confirmed the Choos will be leaving the show after Sung Hoon's wife Shiho Yano posted an invite for fans to attend their final filming on her Instagram account . The Choos last episode will air in late March 2016 . With Choo Sung Hoon leaving the show, Lee Hwi Jae remains the only original cast member since the show premiered . </Li> <Li> On April 22, 2016, KBS revealed that actors Oh Ji - ho, In Gyo - jin and Yang Dong - geun and their respective children would be joining the show . Yang Dong - geun's first episode will be on Episode 127 while Oh Ji - ho and In Gyo - jin's will be on Episode 129 and 130 respectively . </Li> <Li> On October 2016, it was announced that Sam Hammington and his son William would be joining the show . Their first episode will be on Episode 154 . </Li> <Li> On November 2016, it was revealed that singer Ko Ji - young would be joining the show . Their first episode will be on Episode 163 . </Li> <Li> On May 10, 2017, it was announced that actor Lee Beom - soo and his kids would be leaving the show in order for Lee to focus on directing his film . Episode 182 will be their last. . Lee had originally joined the program as a way to spend time with his children while he recovered from his leg injury . </Li> <Li> During the previews at the end of episode 183, Professor Robert Kelly of Pusan National University were shown as the new family joining the show . The Kelly family rose to popularity when his young children's crashed his live interview with the BBC and the video of the incident went viral . </Li> </Ul> <Li> Lee Hyun - woo could not participate in the show when it was picked up on Happy Sunday due to conflicting schedule . </Li> <Li> Yoo Ho - jeong was the original narrator for episode 1 and 2 of the Chuseok Special, there was no narrator for episode 3 of the special episodes . </Li> <Li> Tablo and his daughter Haru joined the cast starting from episode 1 of season 1 to replace Lee Hyun - woo's spot . </Li>

First episode of song triplets in return of superman