Rachel Riley’s Countdown replacement has been confirmed as the presenter steps away from the daytime game show for three ...

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

Mathematician Dr. Tom Crawford will fill in Rachel Riley's role on Countdown while she takes a break from the show.

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, ...

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 while she takes a short break to work on another project. Dr ...

Rachel Riley is set to be temporarily replaced on Countdown by mathematician Dr Tom Crawford. The maths whizz will take a ...

Rachel Riley has a stern warning for producers should they ever want her to leave Countdown. The 39-year-old is currently on a short break from the show she's been a part of since 2009 ...

Rachel Riley is set to take a break from Channel 4's Countdown and her replacement has already been confirmed. Oxford and Cambridge university mathematician Dr Tom Crawford will be stepping in ...

Channel 4 has confirmed Rachel Riley will be replaced on Countdown while she takes a break, but who is the new host? Riley first took over presenting duties in 2009 from Carol Vorderman, who appeared ...

Rachel Riley replaced by 'brilliant mathematician' and YouTuber on Countdown - Riley is taking a short break from the Channel ...