Question: What country of origin does 2 Days & 1 Night and The Return of Superman have in common?
Context: 2 Days & 1 Night () is a Chinese variety show.  It is based on the South Korean reality show "2 Days & 1 Night" and it is broadcast on Sichuan Television. The Return of Superman (; also known as Superman Is Back) is a South Korean reality-variety show that airs on KBS2.  "The Return of Superman" is one of the two segments (the other segment is "1 Night 2 Days") on "Happy Sunday".  The original 3 episodes pilot aired as a Chuseok holiday special from September 19 till September 21 of 2013, starring Lee Hwi-jae, Choo Sung-hoon, Jang Hyun-sung, The show is narrated by actress Yoo Ho-jeong and also includes entertainer Lee Hyun-woo and his two sons. Yoon Shi-yoon (; born Yoon Dong-gu on September 26, 1986) is a South Korean actor and television personality.  He is best known for his leading roles in "King of Baking, Kim Takgu" (2010) and "Flower Boys Next Door" (2013).  In 2016, he became a member of the variety show "2 Days & 1 Night".  In 2017, he is lead character of the drama "The Big Hit", which is also stars and co-directed by Cha Tae Hyun. Happy Sunday (Korean: 해피 선데이 ) is a Korean reality-variety show shown on the KBS2 network, which competes directly against MBC's "Sunday Night" and SBS's "Good Sunday" line-up.  Although it has been broadcast since 2003, its line-up of shows has frequently changed, with a complete revamp occurring in Spring of 2007.  At that time, three new shows were introduced – "Are You Ready", "High-Five", and "Immortal Songs".  Due to its poor reception, "Are You Ready" quickly evolved into "1 Night 2 Days", with most of its cast intact.  In late November 2008, "Happy Sunday" had a revamp of its shows keeping "1 Night 2 Days" as the second segment and bringing back "Immortal Songs" which was previously liked by viewers.  However in late March, "Immortal Songs" ended once again and was replaced with "Qualifications of Men", making "Happy Sunday" an all-male cast, with a total of 14 members.  In 2013, "Qualifications of Men" was cancelled and replaced with "Star Family Show Mamma Mia".  On November 3, 2013 "Star Family Show Mamma Mia" was moved to Wednesday nights and replaced with "The Return of Superman". Kim Seung-woo (born February 24, 1969 in Seoul) is a South Korean actor, and talk show host.  He was a regular cast member on the variety shows 2 Days & 1 Night, and "Win Win." 2 Days & 1 Night (; also known as 1 Night 2 Days; abbreviated as 1N2D) is a South Korean reality-variety show that airs on KBS2 beginning August 5, 2007.  "1 Night 2 Days" is one of the two segments (the other segment is "The Return of Superman") on "Happy Sunday", airing at 6:25pm KST once a week.  The episodes are also uploaded with English subtitles weekly on YouTube through KBS's official channel.  The show's current cast members are Kim Jong-min, Cha Tae-hyun, Kim Joon-ho, Defconn, Yoon Shi-yoon, and Jung Joon-young.  The show's motto is "Real Wild Road Variety."  Its main concept is to recommend various places of interest that viewers can visit in South Korea.  Filming for every new trip is usually done 2 weeks prior to broadcast on KBS2. Jung Joon-young (born February 21, 1989) is a South Korean singer-songwriter, radio DJ, host, actor, and television personality.  He first gained recognition in Mnet's reality television talent show, "Superstar K4" (2012), where he finished third place.  In 2013, he became the youngest member of KBS's variety show "2 Days & 1 Night" Season 3.  Since 2015, Jung is the lead vocalist of a rock band, JJY Band, which changed their name to Drug Restaurant since May 20, 2016. Lee Seung-gi (Hangul: 이승기 ; Hanja: 李昇基 ; born January 13, 1987) is a South Korean singer, actor, host and entertainer.  Known as the "Ballad Prince", Lee has had numerous hit songs such as "Because You're My Woman", "Will You Marry Me", and "Return".  He has garnered further recognition as an actor with leading roles in popular dramas such as "Brilliant Legacy" (2009), "My Girlfriend Is a Nine-Tailed Fox" (2010), and "Gu Family Book" (2013).  He was a member of the first season of weekend variety show "1 Night 2 Days" from November 2007 to February 2012, and the host of talk show "Strong Heart" from October 2009 to April 2012. Ji Sang-ryeol (born December 26, 1970) is a South Korean actor, comedian, and host.  Who has made numerous appearances in dramas and TV Shows.  He is well known for his blunt yet humorous personality in TV Shows such as X-Man and being of the main MCs of top Korean variety show 1 Night 2 Days until a sudden withdrawal and replaced by Kim C.  As of 2010 Ji is one of the main MCs of Family Outing 2 along with female comedian Shin Bong-sun. Sanggeun (Korean: 상근이; born as Herbie, Korean: 허비; April 16, 2004 - April 11, 2014) was a South Korean dog actor.  When Sanggeun first made his appearance on TV show "2 Days & 1 Night", he was named "Sanggeun" by Ji Sang-ryul.  Ji Sang-ryul adopted Sangdon, Sanggeun's son.  Sanggeun died on April 11, 2014, five days before his 10th birthday.
Answer: South Korean