'Crimewatch', which featured a reconstruction of missing 35-year-old chef Claudia Lawrence's last movements along with interviews with detectives, victims and viewers marking its 25 years, attracted a 20.8% share of the 9pm-10pm audience.
The first instalment of a new series of 'Ladette to Lady', which saw the teachers at Eggleston Hall begin work on transforming a raucous group of young Australian women into ladies, drew 2.6m viewers and a 12.3% share of the audience.
BBC Two began its three-part series following retail troubleshooter Mary Portas, this time sorting out charity shops. Starting with Save The Children's Orpington store, 'Mary Queen of Charity Shops' also managed 2.6m viewers and a 12.1% share.
Channel 4 is also looking at the world of retail with four-part series 'I'm Running Sainsburys', in which the supermarket's staff pitch ideas to help credit-crunched shoppers.
However, it pulled in a million fewer viewers than Mary Portas, getting 1.6m, enough for a 7.7% share.
Five's helping of 'CSI' in the same slot attracted 2.4m viewers giving the channel an 11.3% share.