Updated: May 31, 2023
Mark Julian Byford was Deputy Director-General of the BBC and head of BBC journalism from 2004 to 2011.
Get ready to flex your Mark Byford muscles with this tricky quiz! Featuring 22 questions on a variety of Mark Byford topics, this is not for the casual fan. Only true Mark Byford buffs will be able to answer them all correctly. Find out how much you really know.