TV PRESENTER Rachel Riley has announced she will be taking a short break from Countdown. The show’s co-presenter, 39, has ...

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

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 ...

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 ...

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

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

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

Mathematician Dr Tom Crawford will stand in for Rachel Riley while she takes a short break to work on another project. Dr ...