Anne was the former host of BBC's The Weakest Link.
Anne Robinson is quitting as the host of Countdown after just one year.
The 77-year-old - who was the first woman to present the show - says she's "had a blast" but that she has "grandchildren, a large garden and a home in New York, all deserving more of my attention".
Channel 4 says her replacement will be announced in due course.