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

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 ...

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 ...

Rachel Riley is set to be temporarily replaced on Countdown by mathematician Dr Tom Crawford, as she takes a brief hiatus from the Channel 4 show to focus on another project. Dr Crawford ...

Rachel Riley is taking a short break from Countdown to work on another project (Picture: Channel 4) Rachel Riley is taking a temporary step back from her Countdown duties, and now her replacement ...

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 ...

Rachel Riley is set to take a brief hiatus from Countdown, with mathematician Dr Tom Crawford stepping in as her temporary replacement. The Channel 4 show will see Dr Crawford, a close friend of ...

Rachel Riley will be temporarily replaced on Countdown by mathematician Dr Tom Crawford. The maths expert will take a short break from the Channel 4 programme to work on a different project.

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, 39, will temporarily step away from the daytime hit to focus on another project. Countdown producers have drafted in mathematician Dr Tom Crawford as her replacement. Dr Crawford appears ...