Known For
Filmography
Irresistible: Why We Can't Stop Eating
2024
as Self
7
What Are We Feeding Our Kids?
2021
as Presenter
8
Surviving the Virus: My Brother & Me
2020
as Self
HealthCheck UK Live
2020
as Himself - Presenter
The Twinstitute
2019
as Himself - Presenter
The Human Body: Secrets of Your Life Revealed
2017
as Self
9
The Doctor Who Gave Up Drugs
2016
as Self - Presenter
10
How to Stay Young
2016
as Self - Presenter
7
What's the Right Diet for You? A Horizon Special
2015
as Himself - Presenter
Operation Iceberg
2012
as Himself - Presenter
7
Operation Ouch!
2012
as Himself - Presenter
6.2
Horrible Histories
2009
8
The One Show
2006
as Self
4.4
Who Do You Think You Are?
2004
7
Celebrity Mastermind
2003
6
Royal Institution Christmas Lectures
1966
as Himself
5.1
Horizon
1964
as Self - Presenter
7.5
Horizon
1964
as Presenter
7.5