Rachel Riley has been temporarily replaced on Countdown by a tattooed YouTube mathematician who teaches equations in his underwear. Dr Tom Crawford, known for his Tom Rocks Maths channel on the ...
Channel 4 has confirmed Rachel Riley will be replaced on Countdown while she takes a break, but who is the new host? Riley ...
Rachel Riley is an English television presenter, and is best known for co-hosting Channel 4's daytime puzzle show, Countdown. The maths graduate also features on the show's popular comedy spin-off, 8 ...
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