English TV host Rachel Riley is best known for co-hosting the puzzle game programme “Countdown” on Channel 4 as well as its comic spinoff “8 Out of 10 Cats Does Countdown.” At the age of 22, she made her television debut. She was an Oriel College, Oxford, graduate in mathematics. Riley subsequently went on to co-host the programmes “It’s Not Rocket Science” and “The Gadget Show” with a passion for making mathematics and science more approachable. She has additionally appeared in a variety of television shows as a guest up to this point, including This Morning, 12 Again, Pointless Celebrities, and Who Wants to Be a Millionaire? She has even competed on “Strictly Come Dancing” as a participant.Coming to her personal life, Riley is currently in a relationship with dancer Pasha Kovalev. The couple resides together in London.