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

Rachel Riley replaced by 'brilliant mathematician' on Countdown - Riley is taking a short break from the Channel 4 show ...

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

The Channel 4 maths whizz, 39, is taking a short break from the long-running show to work on another project. While she is ...

Viral mathematician Dr Tom Crawford, a fellow at Oxford University, will cover for Rachel Riley on Channel 4's Countdown.

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

Justin Baldoni never wanted 'to hurt' Blake Lively says attorney ...

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 ...

billboard hot 100™ the week’s most popular current songs across all genres, ranked by streaming activity from digital music sources tracked by luminate, radio airplay audience impressions as ...

It’s not ideal, but she feels like it’s important.” Since launching in 1982, Channel 4 game show Countdown has become a staple of daytime telly. There have been several presenters throughout ...

Rachel Riley, with her husband Pasha Kovalev (Andrew Matthews/PA) Countdown was the first programme aired on Channel 4 when the broadcaster launched in November 1982. Adapted from the French TV ...