Greg made his TV debut on BBC2’s The Great Tudor History Quiz and was co-host of BBC2’s Inside Versailles: a historical discussion show broadcast after each episode of the BBC’s lavish Versailles drama.
With a large Twitter following, in 2018 Greg was one of the social media ambassadors for the 14-18 NOW commemorative project to mark the centenary of the First World War ending, being media ambassador for both Peter Jackson’s They Shall Not Grow Old documentary film and Danny Boyle’s nationwide sand art commemoration on Armistice Day.
In 2021, Greg was an expert interviewee in Channel 5’s Our Victorian Christmas and Victorian Britain On Film