Agency sources said that Comet was considering alternative ways of advertising its products. It has traditionally been a heavy spender on regional advertising but more recently has focused on national television campaigns to build awareness of its product range.
Last year Comet spent £12 million on generic brand advertising with 95 per cent of this on TV, 4 per cent on press and 1 per cent on radio.
Specific product range advertising in areas such as computing, mobile phones and Sky Digital accounted for the remainder of its spend.
Regional advertising is currently split between Saatchis and Kudos Design.
Media for Comet is handled by Zenith Media. This account is not under review.
Amy Cox, Comet's marketing and advertising manager, said: "We are reviewing our local advertising arrangements and are at the early stages of talking to a number of agencies."