The second and final part of the 'Martin Clunes: A Man and his Dogs' documentary, which filmed the 'Men Behaving Badly' star being pulled out of a snow hole by a mountain rescue dog, netted a 22.6% share of the 9pm-10pm audience to win the slot for ITV.
It beat BBC One's drama 'Fiona's Story', starring Gina McKee as a woman whose husband is arrested for downloading child pornography, which pulled in 4.3m viewers and an 18.3% share of the 9pm-10.30pm audience.
'Big Brother' drew 2.7m viewers for Channel 4 and a 10.9% share of the 9pm-10pm audience. Including Channel 4+1 figures it managed 3m and a 12.2% share.
BBC Two's documentary 'The Conspiracy Files' netted 2m viewers and an 8.3% share of the 9pm-10pm audience, beating Five's airing of the film 'A Perfect Murder', starring Michael Douglas and Gwyneth Paltrow, which attracted just 916,000 viewers and a 4.4% share of the 9pm-11.15pm audience.
On Saturday night 'X Factor' put in another strong performance for ITV with 8.2m viewers tuning in to see further auditions including a frightening "holistic vocal coach" who tore off the number she had been given and threw it at the judges saying "I am a person not a number". It netted a 43.3% share of the 7.15pm-8.15pm audience.
'The National Lottery - Big 7', hosted by Ben Shephard, won the prime-time slot for the BBC on Saturday night attracting 3.8m viewers and an 18.5% share of the 9.15pm-10pm audience.
It beat ITV's airing of sci-fi film 'The Time Machine', starring Guy Pearce and Samantha Mumba, which pulled in 3m viewers and a 16.2% share of the 9.15pm-11pm audience.
On Friday night, ITV1's coverage of the UEFA Super Cup, which saw Zenit St Petersburg beat Manchester United 2-1, pulled in 3.8m viewers and an 18.7% share of the 7.30pm-10pm audience.
BBC One's panel game show 'Would I Lie to You?', presented by Angus Deayton with team captains David Mitchell and Lee Mack, attracted 3.3m viewers and a 15.5% share of the 9pm-9.30pm audience.
'Big Brother' drew 3.3m viewers and a 15.4% share of the 9pm-10pm audience for Channel 4 as people tuned in to see Lisa evicted. Including Channel 4+1 it reached 3.4m and a 16% share.
The second show, featuring Davina McCall's interview with Lisa, pulled in 2.6m viewers and a 16.7% share of the 10.30pm-11pm audience. Including Channel 4+1 it managed 2.8m and a 17.6% share.