
It was watched by a million more people than ITV1's 'The Bill' and took an 18.5% share of viewing between 9pm and 10pm.
'The Bill's 3.1 million audience meant it took a 13.8% share, making it the leading commercial channel.
Channel 4 managed to get 2.2 million viewers with documentary 'The Twins Who Share A Brain', giving it a 9.7% share. Including the Channel 4+1 audience, the programme rated 2.4 million.
Five's audience for 'CSI' was 1.8 million, just ahead of the 1.6 million audience BBC Two secured with ongoing science series 'The Story of Science: Power, Proof and Passion'.