'Whitechapel' features former 'Spooks' actor Rupert Penry-Jones as detective inspector Joseph Chandler. Chandler is appointed to head a murder inquiry after a woman is killed by a man mimicking the deeds of Jack the Ripper.
It led the primetime ratings with a 29.7% share of viewing, with a BBC One edition of 'Who Do You Think You Are?' featuring impressionist Rory Bremner coming second with a 23.1% share.
The two main channels cornered most of the bumper snowbound audience, leaving Channel 4 a distant third.
C4 documentary 'Backstairs Billy: The Queen Mum's Butler', telling the story of William Tallon, who was evicted after the Queen Mother's death, managed 1.9m viewers and a 7% share. Another 200,000 viewers watched it on Channel 4+1.
BBC Two debuted 'Moses Jones', its new modern-day detective drama set in London's Ugandan community; it brought in 1.4m viewers for a 5% share.
'Edison' was the film on offer on Five, garnering an audience of 1m and a 4.1% share.