Word of explanation to non UK TV watchers.

Carol Vorderman, until a couple of days ago, featured on a Quiz programme called "Countdown", in which contestants had to make the longest possibe word from letters provided or work out complicated mathematical calculations. Carol had incredible mental arithmetic skills and was able to work blindingly fast in her head.

Robbie Savage is a footballer who when playing for Leicester City, sustained a knock on the head. When this happens the referee has to stop the game and ask the injured player a question to see if they are OK to carry on.

The ref asked Robbie :"Who is the Prime Minister?" - Robbie was duly stretchered off the pitch - so not a serious suggestion!

VBut who could replace her?