Alan Yentob obituary: Creative giant of BBC TV, on screen and off

Paul GlynnCulture reporterAlamyAs the face of documentary series like Arena, Imagine and Omnibus, Alan Yentob was usually seen interviewing the biggest names in the arts and entertainment.But viewers may not have realised the extent to which the broadcaster helped shape the very TV channels he appeared on.Having begun his career as a documentary maker, Yentob went on to hold virtually every major job in BBC…