BBC One’s Kilimanjaro: The Big Red Nose Climb pulled in 8.74m (36.6%) last night during the 8pm hour, according to overnight viewing figures.
The show, which followed Cheryl Cole, Gary Barlow and other celebrities as they prepared to climb Mount Kilimanjaro, was the most watched programme of the day.
The Comic Relief special was comfortably ahead of its nearest competitor The Bill, which drew 3.96m (16.6%) for ITV1 at 8pm.
Channel 4′s Ten Years Younger: The Challenge attracted 1.37m (5.7%), while the second installment of BBC Two’s Jimmy Doherty In Darwin’s Garden logged 1.35m (5.6%), a drop of 750k from last week’s performance.
Futuristic action movie The Postman pulled in a lowly 585k (2.7%) for Five between 8pm and 11.15pm.
BBC One came top during the 9pm hour, pulling in 7.94m (33%) with Comic Relief Does The Apprentice, which saw Patsy Palmer clash with Carol Vorderman.
The final episode of Billy Connolly: Journey To The Edge Of The World took 3.66m (15.2%) for ITV1, while BBC Two’s Darwin’s Dangerous Idea – investigating the sinister practices associated with Darwin’s theory of evolution – managed 1.48m (6.1%).
The second film in Channel 4′s Red Riding trilogy – starring Maxine Peake and Paddy Considine – was seen by 1.57m (7.4%), a drop of 900k from the first installment.
Overall, BBC One dominated primetime with an average share of 31.7% to ITV1′s 16.6%. Channel 4 was third with 6% (+1: 0.6%), followed by BBC Two with 5.6% and Five with 2.5%.
Elsewhere, Jade’s Wedding brought in 771k (3.5%) to Living over two hours from 8pm.
The programme beat the first visit to American Idol on ITV2, which logged 320k (1.5%) for the 8pm hour. Figures rose to 355k (1.6%) for the channel during the penultimate episode of Paris Hilton’s British Best Friend at 9pm.