Rachel Riley’s Countdown replacement has been confirmed as the presenter steps away from the daytime game show for three weeks. The 39-year-old mathematician joined the Channel 4 show in 2009 as a ...

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 ...

Rachel first joined Countdown in 2009, taking over from Carol Vorderman RACHEL Riley has been temporarily replaced on Countdown – by a YouTube star. The Channel 4 words and numbers show will undergo ...

RACHEL RILEY – who rose to fame on Countdown - admitted that she needed a “lie down” after she talked contestants through a tricky maths sum on a recent episode of the popular Channel 4 show. Rachel ...

TV star Rachel Riley has lifted the lid on what one of her famous co-star's is like behind the camera. The maths whizz has made a name for herself on Countdown and its comedy spin-off 8 Out of 10 Cats ...