Rachel Riley Is Really Smart, But Does She Have Any Friends? | 8 Out Of 10 Cats Does Countdown

Watch the new series of 8 Out of 10 Cats Does Countdown every Friday at 9pm on Channel 4 Rachel Riley is incredibly clever when it comes to maths, but does she have any friends? Watch the episode on All 4: http://www.channel4.com/programmes/8-out-of-10-cats-does-countdown