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 ...

COUNTDOWN'S Rachel Riley went to war with co-star Susie Dent today after the lexicographer slammed her numbers round. In a comical clip posted on Instagram, the 31-year-old engaged in a lightsaber ...

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 appears to have taken aim at Countdown co-host Anne Robinson following the latter's announcement that they will be departing the game show later this year. Riley shared an Instagram post ...

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 ...

Mathematician Dr Tom Crawford will stand in for Rachel Riley on Channel 4’s Countdown while she takes a short break to work ...