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 ...

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

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

Channel 4 confirm Rachel Riley’s Countdown replacement - Riley first joined Countdown in 2009 as a replacement for Carol ...

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

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 ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Rachel Riley will be replaced as the show's co-host by a mathematician and YouTuber while filming a new project .

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

TV PRESENTER Rachel Riley has announced she will be taking a short break from Countdown. The show’s co-presenter, 39, has been temporarily replaced by YouTuber Dr Tom Crawford – ...