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

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

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

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

Rachel Riley is set to take a brief hiatus from Countdown, with mathematician Dr Tom Crawford stepping in as her temporary ...

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

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

Jensen Ackles (Supernatural, The Boys) posted a musical moment from the set of Prime Video and Showrunner Derek Haas' ...

TV panel show Channel 4 2012 - 2025 167 episodes (26 series) ...

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

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