Mrs Brown's Boys topped Monday (December 30) night's ratings, pulling in 8.71 million viewers, according to overnight data.
The New Year special 'Who's a Pretty Mammy?' was watched by 20.3% of the audience share when it aired on BBC One at 9.30pm.
The impressive ratings come after a festive edition of the Brendan O'Carroll comedy was the most-watched programme on Christmas Day this year.
Elsewhere on the channel, 4.67m (20.3%) tuned in to see famous faces including David Bradley and James Allen take on Celebrity Mastermind at 7pm, while a showing of fairytale movie Shrek Forever After attracted 3.79m (16%) straight afterwards at 7.30pm.
Over on BBC Two, Dad's Army drew in 2.02m (8.69%) at 7.30pm, followed by a special Christmas University Challenge at 8pm, which was seen by 2.3m (9.9%).
The channel's new series The Sacred Wonders of Britain kicked off with 2.36m (9.79%) viewers at 8.30pm.
Aside from soaps, ITV's primetime programming was taken up by 2008 Bond film Quantum of Solace. 3.97m (16.64%) tuned in to see Daniel Craig's second outing as the iconic spy at 8.30pm, with 448,000 (2.3%) watching an hour later on +1.
On Channel 4, Gok Wan's behind-the-scenes documentary Gok Does Panto was seen by 550k (2.37%) at 7.05pm, 1.02m (4.27%) were inspired by Jamie's Festive Feast and 970k (3.92%) tuned in to canine competition documentary Doggy Styling.
Eddie Stobart: Trucks & Trailers' festive compilation entertained 422k (1.79%) viewers on Channel 5 at 7.30pm, followed by World's Strongest Man at 8.30pm with 1.04m (4.36%). 958k (4.87%) watched a 9.30pm showing of Patrick Swayze's Dirty Dancing.
On BBC Three, Raiders of the Lost Ark brought in 723k (3.14%) at 9pm, while a showing of Love Actually attracted 646k to ITV2 in the same timeslot.
Made in Chelsea's series six End of Season Party, hosted by Rick Edwards, was watched by 367k (1.85%) on E4 at 10pm.
