Answer by taking a quote from the following article:

Sir David Frederick Attenborough  (UK: ; born 8 May 1926) is an English broadcaster and naturalist. He is best known for writing and presenting, in conjunction with the BBC Natural History Unit, the nine natural history documentary series that form the Life collection, which form a comprehensive survey of animal and plant life on Earth. He is a former senior manager at the BBC, having served as controller of BBC Two and director of programming for BBC Television in the 1960s and 1970s. He is the only person to have won BAFTAs for programmes in each of black and white, colour, HD, 3D and 4K.

Attenborough has been featured as the subject of a number of BBC television programmes. Life on Air (2002) examined the legacy of his work and Attenborough the Controller (2002) focused on his time in charge of BBC Two. He was also featured prominently in The Way We Went Wild (2004), a series about natural history television presenters, and 100 Years of Wildlife Films (2007), a special programme marking the centenary of the nature documentary. In 2006, British television viewers were asked to vote for their Favourite Attenborough Moments for a UKTV poll to coincide with the broadcaster's 80th birthday. The winning clip showed Attenborough observing the mimicry skills of the superb lyrebird.  Attenborough was named the most trusted celebrity in the UK in a 2006 Reader's Digest poll, and in 2007 he won The Culture Show's Living Icon Award. He has also been named among the 100 Greatest Britons in a 2002 BBC poll and is one of the top ten "Heroes of Our Time" according to New Statesman magazine.  In September 2009, London's Natural History Museum opened the Attenborough Studio, part of its Darwin Centre development. In December 2013, he was awarded the freedom of the city of Bristol.  In 2012, Attenborough was among the British cultural icons selected by artist Sir Peter Blake to appear in a new version of his most famous artwork - the Beatles' Sgt. Pepper's Lonely Hearts Club Band album cover - to celebrate the British cultural figures of his life. The same year, Attenborough featured in the BBC Radio 4 series The New Elizabethans to mark the diamond Jubilee of Queen Elizabeth II. A panel of seven academics, journalists and historians named him among the group of people in the UK "whose actions during the reign of Elizabeth II have had a significant impact on lives in these islands".  In May 2016, it was announced that a new British polar research ship will be named RRS Sir David Attenborough in his honour. While an Internet poll suggesting the name of the ship had the most votes for Boaty McBoatface, Science Minister Jo Johnson said there were "more suitable names", and the official name was eventually picked up from one of the more favoured choices. However, one of its research subs will be named "Boaty" in recognition of the public vote.

What programs have covered him?
Life on Air (2002) examined the legacy of his work and Attenborough the Controller (2002) focused on his time in charge of BBC Two.