Graham Norton: Secret to show’s success is its unique format

Graham Norton has identified his chat show’s unique format as the secret behind its massive success and ability to attract A-list celebrities.

The broadcaster returns tonight with a new series of The Graham Norton Show on BBC1.

He said the main reason the programme has ratings of over 4m viewers and trounces rivals such as Jonathan Ross was down to a winning formula of having all the guests on at once, and including them all in light-hearted banter.