Question: What is a four-part television documentary series about human evolution produced by the BBC in the United Kingdom, Aliens of the Deep or Walking with Cavemen ?

Context paragraphs:
Prehistoric Autopsy: Prehistoric Autopsy is a 2012 British television documentary film series shown in three one-hour episodes on BBC Two.  The series is about human evolution and is narrated by biologist George McGavin and anatomist Alice Roberts.  Graeme Thomson is the series producer and Jane Aldous is the executive producer.

Terry Jones' Great Map Mystery: Terry Jones' Great Map Mystery is a four-part television documentary series first broadcast on BBC Two Wales in 2008 and presented by former Monty Python member Terry Jones.  As described on the BBC's website, "Terry Jones sets out on a series of journeys through Wales following the world's first road atlas: John Ogilby's Britannia, published in 1675."

The Detectives (2015 TV series): The Detectives is a British television documentary series that first aired in 2015.  The first series was broadcast on BBC Two as a three-part documentary series airing over three consecutive nights from 17 May 2015.  The first series followed investigators at Greater Manchester Police's sex crimes unit, focusing on the investigation into historical sex crimes committed by disc jockey Ray Teret, and his subsequent trial and conviction for those offences.  A second, four-part series, titled "The Detectives: Murder on the Streets" began airing on 20 September 2017, this time shadowing members of Greater Manchester's Murder Investigation Team.

Operatunity Oz: Operatunity Oz was a 2006 talent search, and accompanying four-part television documentary by Simon Target, in which Opera Australia conducted a nationwide quest to find someone without professional opera experience, who could be coached to sing in a staged opera – Verdi's "Rigoletto" in the event – at the Sydney Opera House in the company of professional performers, as part of Opera Australia's regular season.  It was modelled on the earlier British "Operatunity" (2003).

Aliens of the Deep: Aliens of the Deep is a 2005 documentary film, directed in part by James Cameron alongside fellow cameraman and friend Steven Quale, who would go on to direct "Final Destination 5" six years later, and filmed in the IMAX 3D format.  It was produced by Walden Media and Walt Disney Pictures.  Cameron teams with NASA scientists to explore the Mid-Ocean Ridges, submerged chains of mountains in the Atlantic and Pacific oceans that are home to some of the planet's more unusual forms of life.

America in Primetime: America in Primetime is a 2011 four-part documentary series, focusing on television in the United States.  Originally produced for and broadcast by the Public Broadcasting Service (PBS), the series is a production by The Documentary Group, in collaboration with the Academy of Television Arts & Sciences Foundation and WETA-TV.  The rights to the series were purchased by the United Kingdom's British Broadcasting Corporation (BBC) in 2013.  The episodes were re-edited and clips of Alan Yentob introducing different segments, shot on location in different areas of America, were added.  Exploring both old and new television series, each episode centers on the evolution of certain character archetypes – such as female and male archetypes, misfits, and heroes – in primetime TV.  The series features interviews with a wide variety of influential people in television, including actors, creators, writers and executive producers, talking about their own shows and others.  The documentary features a lot of footage from the programs discussed.

Walking with Cavemen: Walking with Cavemen is a four-part television documentary series about human evolution produced by the BBC in the United Kingdom.  It was originally released in April 2003.  It was subsequently presented in the United States as a two-part series by the Discovery Channel and its affiliates.  There was an accompanying book of the same title.

Birds Britannia: Birds Britannia is a BBC's four-part television series about the birds of the United Kingdom, first shown from 7 to 28 November 2010 on BBC Four.  It was produced by Stephen Moss.

Forces of Nature (TV series): Forces of Nature is a four-part television documentary series presented by physicist Brian Cox.  The series was co-produced by BBC Studios, PBS and France Télévisions and originally aired in the United Kingdom weekly from 4 July 2016 at 21:00 on BBC One.

Walking with Beasts: Walking with Beasts (Walking with Prehistoric Beasts in North American releases) is a 2001 six-part television documentary miniseries, produced by the BBC Natural History Unit.  It is the second installment of the Walking With... series and a sequel to "Walking with Dinosaurs".  "Beasts" takes place after the extinction of the dinosaurs 65 million years ago depicted in "Walking with Dinosaurs", and recreates animals of the Cenozoic with computer-generated imagery and animatronics.  Like "Dinosaurs", its narrative is presented in the style of a traditional nature documentary.  Some of the concepts it illustrates are the evolution of whales, horses, and humans.

Supporting paragraphs: Walking with Cavemen Aliens of the Deep
Answer: Walking with Cavemen