Description:The BBC appointed a former journalist who runs the Royal Opera House to lead the broadcaster on Thursday (November 22) after sex abuse scandals shook public trust in one of Britain's most treasured institutions. Tony Hall, a former director of BBC news, will replace George Entwistle who resigned as director-general this month after failing to get to grips with a scandal that threw the 90-year-old state-funded organisation into turmoil.(1:24)