Schalkse Ruiters, translated as "Roguish Horsemen", was a very successful show aired on the Flemish TV channel Eén.
 The motto of the show is: do not believe what you see on TV.
 During the show, three documentaries are presented.
 The viewers vote whether the documentaries are real or fake.
 Anno 2012 the show still got the Belgian record of most viewers, dating from an episode sent out in 1997.
 The show won almost every Belgian television award.
Notable television credits include the BAFTA nominated David Attenborough series "The Life of Mammals" and "Life in the Undergrowth", and the BAFTA-winning series "Life in Cold Blood".
 He was nominated for an Emmy Award for his score for the Wildlife on One film "Operation Dung Beetle"
Adam Hart FRES FRSB born in Brixham, South Devon is an English scientist, author and broadcaster.
 He has co-presented three BBC TV documentaries on social insects (BBC4's "Planet Ant: Life Inside the Colony", BBC2's "Life on Planet Ant" and BBC2's "Hive Alive").
 Hart has written and presented numerous BBC Radio 4 and BBC World Service documentaries and written more than 70 scientific papers.
 In 2015, he authored the popular-science book "The Life of Poo" about our complex relationships with bacteria.
 In 2017 he joined the presenting team of the BBC World Service weekly science programme "Science in Action".
Reality legal programming (also known as reality legal program, reality legal show, legal reality show) is a television programming subgenre of reality television, focusing on reality-based subjects having to do with law, such as police, crime, litigation, etc.
 Subgenres of reality legal programming consist of a strict focus and come in all shapes and sizes from legal news programming and reality court shows to law enforcement documentaries and true crime shows.
 Prime examples of reality legal programs include "Cops", "Dateline NBC", "Cold Case Files", etc.
 Many reality legal programs use elements from other television genres, such as documentaries, talk shows, news shows, caught-on-tape shows, etc.
Life in the Undergrowth is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the UK from 23 November 2005.
First Cut was initially a strand of thirty half-hour primetime documentaries commissioned by Channel 4 Commissioning Editor for Documentaries, Sarah Mulvey.
 It was added to the schedule to replace the old "Alt-TV" show, which launched many documentary makers' careers including Marc Isaacs, Olly Lambert, Emily James, Tina Gharavi, Paul Berczeller and Morgan Matthew.
 "First Cut" aimed to access the brightest and best new talent, allowing young directors to showcase their talent before being given further opportunities on Channel 4's flagship documentaries "Cutting Edge" and "Dispatches".
Manfred Kirchheimer (born 1931) is a documentary film maker and professor of film at the School of Visual Arts in New York City.
 He previously taught at NYIT.
 He was born in Saarbrücken, Germany, and his family moved to New York City in 1936 to escape Nazi Germany.
 After receiving a B.A. from the City College of New York in 1952, he worked primarily as a film editor and he also began making his own films.
 A major theme in many of his documentaries is urban life.
 His most notable documentaries include: "Stations of the Elevated", "We Were So Beloved", "", and "Art Is... The Permanent Revolution".
Brendan Courtney (born 24 June 1973 in Dublin) is an Irish broadcaster, content creator & fashion designer.
 He has written many hit TV formats and award winning documentaries.
 He is renowned for his use of technology when engaging audiences, his fashion label Lennon Courtney began in 2012, the first openly gay presenter in Ireland.
 He created and hosted "Wanderlust" on RTÉ Two, Treasure Island RTE2, Holiday Home Detectives RTE1 "The Brendan Courtney Show" on TV3, "Ant & Dec's Saturday Night Takeaway" on ITV2, "Blind Date" on ITV2, "Love Match" on ITV1, "Look of Love" on ITV1, "The Clothes Show" on UKTV and "Off the Rails" on RTÉ One.
 He is one half of design duo "Lennon Courtney" along with Sonya Lennon which is stocked in Dunnes Stores.
 He has most recently made the hit authored documentary titled "we need to talk about Dad" which aired on RTE1 in 2017 and looks set to change the law in Ireland.
 Other documentaries include "Living with Boy George" SKY tv and "Alias Ricky Grrvais" Bravo tv.
 Brendan and Sonya's partnership has extended to founding fashion discovery app "fafinder" hundreds of boutiques in one place.
Feiyu Show () is a 2014 Chinese documentary film directed by Sun Hong.
 It was released in China on October 23, 2014.
In forestry and ecology, understory (or understorey, underbrush, undergrowth) comprises plant life growing beneath the forest canopy without penetrating it to any great extent, but above the forest floor.
 Only a small percentage of light penetrates the canopy so understory vegetation is generally shade tolerant.
 The understory typically consists of trees stunted through lack of light, other small trees with low light requirements, saplings, shrubs, vines and undergrowth.
 Small trees such as holly and dogwood are understory specialists.

Question: Are Life in the Undergrowth and Feiyu Show both documentaries ?
Answer: yes