housewives lift channel 4 ratings the debut of us television hit desperate housewives has helped lift channel 4 s january audience share by 12% compared to last year.  other successes such as celebrity big brother and the simpsons have enabled the broadcaster to surpass bbc2 for the first month since last july. however the channel s share of the audience fell from 11.2% to 9.6% last month in comparison with january 2004. celebrity big brother attracted less viewers than its 2002 series.  comedy drama desperate housewives managed to pull in five million viewers at one point during its run to date  attracting a quarter of the television audience. the two main television channels  bbc1 and itv1  have both seen their monthly audience share decline in a year on year comparison for january  while five s proportion remained the same at a slender 6.3%. digital multi-channel tv is continuing to be the strongest area of growth  with the bbc reporting freeview box ownership of five million  including one million sales in the last portion of 2004. its share of the audience soared by 20% in january 2005 compared with last year  and currently stands at an average of 28.6%.