Horizon
1964 · Presenter
Celebrity Mastermind
2003
Horrible Histories
2009
Who Do You Think You Are?
2004
Royal Institution Christmas Lectures
1966 · Himself
The Twinstitute
2019 · Himself - Presenter
HealthCheck UK Live
2020 · Himself - Presenter
Operation Iceberg
2012 · Himself - Presenter
What's the Right Diet for You? A Horizon Special
2015 · Himself - Presenter
What Are We Feeding Our Kids?
2021 · Presentor
The Truth About Calories
2015 · Presenter
