The third hour-long instalment of 'Mistresses' retained its audience from last week, with 4.8m viewers and a 20.2% share at 9pm.
ITV1's new crop of "common as muck" girls, who are drafted into a posh finishing school with the aim of being outfitted with some social graces, could not compete with the thirty-something series 'Mistresses', attracting an audience of only 3.4m.
Five scored a rare victory over its rival ITV1 with the latest series of US hit drama 'Crime Scene Investigation', attracting 3.5m viewers and a 14.6% compared to ITV1's 14.2%.
Channel 4 lagged its commercial competitors with 'Medicine Men Go Wild', in which two doctors sampled the healing methods of an African pygmy tribe. It started its four-part run with 1.5m viewers and a 6.2% share.
In the 10pm news battle BBC One underlined its dominance over the relaunched ITV1 'News at Ten' with 4.7m viewers to ITV1's 2.2m.