Rachel Riley will be replaced on Channel 4 show Countdown by a pal as the mathematician takes time away from her usual role ...

Maths expert and TV presenter Rachel Riley is set to take a ‘short break’ from Countdown – with Dr. Tom Crawford stepping in ...

Rachel Riley is temporarily stepping down from Countdown while she focuses on another project, with newcomer Dr Crawford ...

Dr Tom Crawford’s videos of teaching equations in his underwear have helped him attract more than 200,000 subscribers ...

A Countdown contestant has revealed why the TV show is so much harder than it looks due to an 'annoying' hidden feature in it ...

RACHEL Riley has been temporarily replaced on Countdown – by a YouTube star. The Channel 4 words and numbers show will ...

Rachel Riley is set to be temporarily replaced on Countdown by mathematician Dr Tom Crawford, as she takes a brief hiatus ...

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 ...

EXCLUSIVE: Countdown star Rachel Riley shared her thoughts on leaving the Channel 4 show just days before it was announced ...

Countdown 's Rachel Riley will be temporarily replaced by YouTube math star, Dr Tom Crawford. It was announced that Riley, ...

A tattooed YouTuber is replacing Rachel Riley on Countdown in a shock shake-up and has announced the appointment to fans with photos from the Channel 4 set. A change from the usual glamorous ...

EXCLUSIVE: Rachel Riley shared her thoughts on leaving Channel 4 show Countdown, days before it was announced she will be ...