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Alan Yentob, the long-serving BBC arts broadcaster and documentary-maker, has died aged 78.
Yentob profiled and interviewed a wide range of important cultural and creative figures over the years, including David Bowie, Charles Saatchi, Maya Angelou and Grayson Perry, for TV series such as Omnibus, Arena and Imagine.
He also served as controller of BBC One and Two, and the organisation's creative director and head of music and arts during a long and varied career.
Paying tribute to her late husband, Philippa Walker described Yentob as "curious, funny, annoying, late and creative in every cell of his body" and added that he was "the kindest of men".