COUNTDOWN is the first programme ever to air on Channel 4.
And when the show launched in the early 80s, it also thrust a young Carol Vorderman into the spotlight as a sexy maths whizz.
Carol joined Countdown for the very first episode in 1982 when she was in her twenties.
She got the gig after her mum arranged for the then 21-year-old to have an audition for the show after seeing a newspaper ad looking for women with good numerical skills.
Despite her young age Carol bagged the job and appeared on Countdown with the late Richard Whiteley from 1982 until his death in June 2005.