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Cary Grant (born Archibald Alec Leach; January 18, 1904 - November 29, 1986) was an English-American actor, known as one of classic Hollywood's definitive leading men. He began a career in Hollywood in the early 1930s, and became known for his transatlantic accent, debonair demeanor, and light-hearted approach to acting and sense of comic timing. He became an American citizen in 1942. Born in Horfield, Bristol, Grant became attracted to theatre at a young age, and began performing with a troupe known as "The Penders" from the age of six.
Biographers Morecambe and Stirling believe that Cary Grant was the "greatest leading man Hollywood had ever known". Schickel stated that there are "very few stars who achieve the magnitude of Cary Grant, art of a very high and subtle order", and thought that he was the "best star actor there ever was in the movies". David Thomson and directors Stanley Donen and Howard Hawks concurred that Grant was the greatest and most important actor in the history of the cinema. He was a favorite of Hitchcock, who admired him and called him "the only actor I ever loved in my whole life", and remained one of Hollywood's top box-office attractions for almost 30 years. Wansell wrote: "To millions of movie-goers around the world, Cary Grant will forever epitomize the glamour, and the style, of Hollywood in its golden years. With his dark hair, and even darker eyes, mischievous smile and effortless elegance, he was, is, and always will be indelibly one of the great movie stars. Since his death in 1986, the incandescence of his screen image has not dimmed for a single moment". Kael stated that the world still thinks of him affectionately, because he "embodies what seems a happier time-a time when we had a simpler relationship to a performer." Grant was nominated for two Academy Awards, for Penny Serenade (1941) and None But the Lonely Heart (1944), but never won a competitive Oscar; he received a special Academy Award for Lifetime Achievement in 1970. The inscription on his statuette read "To Cary Grant, for his unique mastery of the art of screen acting with respect and affection of his colleagues". On being presented with the award, his friend Frank Sinatra announced: "It was made for the sheer brilliance of acting ... No one has brought more pleasure to more people for so many years than Cary has, and nobody has done so many things so well". At the Straw Hat Awards in New York in May 1975, Grant was awarded a special plaque which recognized the city's appreciation of him as a "star and superstar in entertainment". The following August, he was invited by Betty Ford to give a speech at the Republican National Convention in Kansas City and to attend the Bicentenary dinner for Queen Elizabeth II at the White House that same year. He was later invited in 1978 to attend a royal charity gala at the London Palladium. In 1979, Grant hosted the American Film Institute's tribute to Alfred Hitchcock, and presented Laurence Olivier with his honorary Oscar. In 1981, Grant was accorded the Kennedy Center Honors. Three years later, a theatre on the MGM lot was renamed the "Cary Grant Theatre". In 1995, when over a hundred leading film directors were asked to reveal their favorite actor of all time in a Time Out poll, Grant came second only to Marlon Brando. On December 7, 2001, a statue of Grant was unveiled in Millennium Square, a regenerated area next to Bristol Harbour, Bristol, in the city where he was born. In November 2005, Grant again came first in Premiere magazine's list of "The 50 Greatest Movie Stars of All Time". According to McCann, ten years earlier they had declared that Grant was "quite simply, the funniest actor cinema has ever produced".

what did he do to receive those?

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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.
After leaving the Navy, Attenborough took a position editing children's science textbooks for a publishing company. He soon became disillusioned with the work and in 1950 applied for a job as a radio talk producer with the BBC. Although he was rejected for this job, his CV later attracted the interest of Mary Adams, head of the Talks (factual broadcasting) department of the BBC's fledgling television service. Attenborough, like most Britons at that time, did not own a television, and he had seen only one programme in his life. However, he accepted Adams' offer of a three-month training course, and in 1952 he joined the BBC full-time. Initially discouraged from appearing on camera because Adams thought his teeth were too big, he became a producer for the Talks department, which handled all non-fiction broadcasts. His early projects included the quiz show Animal, Vegetable, Mineral? and Song Hunter, a series about folk music presented by Alan Lomax. Attenborough's association with natural history programmes began when he produced and presented the three-part series Animal Patterns. The studio-bound programme featured animals from London Zoo, with the naturalist Julian Huxley discussing their use of camouflage, aposematism and courtship displays. Through this programme, Attenborough met Jack Lester, the curator of the zoo's reptile house, and they decided to make a series about an animal-collecting expedition. The result was Zoo Quest, first broadcast in 1954, where Attenborough became the presenter at short notice due to Lester being taken ill. In 1957, the BBC Natural History Unit was formally established in Bristol. Attenborough was asked to join it, but declined, not wishing to move from London where he and his young family were settled. Instead, he formed his own department, the Travel and Exploration Unit, which allowed him to continue to front Zoo Quest as well as produce other documentaries, notably the Travellers' Tales and Adventure series. In the early 1960s, Attenborough resigned from the permanent staff of the BBC to study for a postgraduate degree in social anthropology at the London School of Economics, interweaving his study with further filming. However, he accepted an invitation to return to the BBC as controller of BBC Two before he could finish the degree.

What kind of work did he first do at BBC?
he became a producer for the Talks department,