(2021) What Are We Feeding Our Kids?

as Presentor

(2020) Surviving the Virus: My Brother & Me

as Self

(2024) Irresistible: Why We Can't Stop Eating

as Self

(1964) Horizon

as Self - Presenter

(2017) The Human Body: Secrets of Your Life Revealed

as Self

(2004) Who Do You Think You Are?

as ---

(2016) The Doctor Who Gave Up Drugs

as Self - Presenter

(1964) Horizon

as Presenter

(2016) How to Stay Young

as Self - Presenter

(2019) The Twinstitute

as Himself - Presenter

(2012) Operation Iceberg

as Himself - Presenter

(2015) What's the Right Diet for You? A Horizon Special

as Himself - Presenter

(2020) HealthCheck UK Live

as Himself - Presenter

(2012) Operation Ouch!

as Himself - Presenter

(2009) Horrible Histories

as ---

(1966) Royal Institution Christmas Lectures

as Himself