This is a sad day for the broadcasting industry of the UK and the world. Frost was one of the greatest TV interviewers - if not THE greatest. Before him TV interviewers were renowned for their deferential approach in interviewing politicians and other famous people, but Frost came along and took a tougher approach to interviewing and never let them get away with not answering a question and, by the time he'd finished with them, the interviewees would leave the studio a quivering mess.
He will, of course, forever be remembered for his assertive and effective interview with disgraced Richard Nixon in 1977, ambushing Nixon with new and damning information about Charles Colson
, resulting in Nixon admitting that he did unethical things, which was immortalised in the 2008 movie Frost/Nixon
He was also famous for hosting the popular British panel gameshow Through the Keyhole
from when it started in 1987 to when it finished in 2008. The show saw American/British TV presenter, gastronome and musician Loyd Grossman looking around mystery famous people's houses and the panel of celebrities had to guess which famous person lived in each house.