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

Oxford and Cambridge university mathematician Dr Tom Crawford will be stepping in as the game show's number expert.

Rachel Riley is set to be replaced as co-host of Countdown. The 39-year-old has been hosting the game show since 2009 when ...

A change from the usual glamorous number expert Rachel, Cambridge and Oxford university mathematics boffin, Dr Tom Crawford, ...

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

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

Rachel Riley, 39, is urging people to be clued up on their bodies, after losing a friend who showed no obvious signs of ill ...

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

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

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

EXCLUSIVE: Countdown star Rachel Riley said the devastating loss has given her the wake-up call she needed to get her own ...

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