The presenting duo were reacting to Scarlett Moffatt’s story about how she had attempted to get in touch with the physicist and cosmologist to talk about time travel.
The pair then pretended to call the Professor and was greeted by an electronic voice that mimicked the 74-year-old, who has motor neurone disease.
But many viewers were less than impressed, and called Ant and Dec out for the “distasteful” skit...
The Geordie duo’s joke came after ‘Gogglebox’ star Scarlett shared her theory on time travel with her fellow campmates.
She told them: “In order to travel back in time we have to go faster than the speed of light.
“The speed of light is like 319 and then loads of numbers, it’s exactly the same latitude point as the tip of the great Pyramid.
“So I think the pyramids are from the future, I think someone from the future realised we would need them and went back in time and built them.”
But never mind Scarlett’s theory, all Lisa Snowdon was interested in was how she’d got her hands on the professor’s contact details.
Then Scarlett confessed: “Well I was trying to look for his email address but it was a Hotmail account so I’m not too sure it’s real.”