Filmography
| 2021 | Royals: Keeping the Crown · as SelfOn Plex |
| 2020 | Henry VIII & Trump: History Repeating? · as Self - Historian |
| 2017 | The Royal House of Windsor · as Self - Historian |
| 2015 | Alan Johnson: The Post Office and Me · as Self - Author And Historian |
| 2014 | The Real History of Science Fiction · as Himself - Presenter |
| 2012 | Becoming the Beatles · as Self |
| 2011 | |
| 2011 | The Story of British Pathe · as Self - Historian & Writer |
| 2011 | If Walls Could Talk: The History of the Home · as Self - Historian |
| 2011 | All's Wells That Ends Wells · as Self |
| 2011 | One Hit Wonder · as Self |
| 2008 | The Unseen Beatles · as Self |
| 2007 | The Supersizers · as Self - Participant |
| 2006 | The ONE Show · as Self - Other Guest |
| 2002 | Timeshift · as Self - Historian |
| 1984 | Jeopardy! · as Self - Clue Giver |
| 2013 | Das Auto: The Germans, Their Cars and Us · as Presenter |
| 2011 | |
| 2008 |
| 2014 | The Real History of Science Fiction · as Written By |