TV advertising revenues in the UK may have enjoyed a renaissance - but audiences remain static.

Latest figures released by Publicis Groupe's London media agency Starcom show that ad revenues are growing at their fastest rate for five years, with a rise of 13% in the first quarter of 2005 compared with the same period last year.

The country's biggest commercial broadcaster, ITV, saw ad revenues increase by 9% but Starcom says audiences fell by 5% across all demographics.

State owned (but commercially funded) Channel 4 saw its revenues up 18%, supported by strong audience growth. Analysts believe the company will maintain its position as its E4 digital offering is launched on the free-to-air platform Freeview next month. They also say the move may impact further on ITV's audience share.

The third terrestrial commercial broadcaster, Five, notched a 19% rise in ad revenue together with modest viewer increases.

Data sourced from Media Week (UK); additional content by WARC staff