The Monday night cult hit pulled in 1.13m (4.2%) for its latest edition, rising over 300,000 on last week's numbers and setting the audience record a week after host Victoria Coren's wedding to David Mitchell.
Only Connect replaced Doc Martin as the multichannel leader, as another repeat of the comedy drama logged 789k (3.2%).
Behind Doc Martin in third place, ITV2's I'm a Celebrity... Get Me Out of Here Now - which has lost steam in the last week - drew 730k (4.4%) at 10pm (+1: 133k).
Meanwhile, ITV1's main showing of I'm a Celeb grabbed an impressive 9.02m (36.7%) for a 90-minute edition, starting at the 8.30pm junction that Coronation Street normally fills.
The commercial channel's terrestrial rival BBC One had a quiet night in comparison, its lineup of Panorama (8.30pm) and New Tricks (9pm) managing 2.89m (11.5%) and 3.95m (16.2%) respectively. New Tricks was a repeat.
Over on BBC Two, University Challenge (3.15m/13%) and MasterChef: The Professionals (2.69m/10.7%) held up strong in the 8pm hour, after which the concluding instalment of the channel's three-part documentary series on Nazi Germany - The Dark Charisma of Adolf Hitler - attracted 1.86m (7.6%)
The Curious Case of Clark Brothers followed with 1.1m (4.5%), before 8 Out of 10 Cats amused 1.08m (6.1%) at 10pm. Channel 4 +1 added 212k for Fry, 271k for 9pm's new documentary series, and 203k for Jimmy Carr's Cats.
Overall, ITV1 dominated primetime with 29.1% (+1: 0.9%), beating BBC One's 19.7%. BBC Two claimed third place with 8%, seeing off Channel 4's 4.1% (+1: 0.7%). Drama channel ITV3 rose into third place with 2.7%, above Channel 5's 2.1% (+1: 0.2%).
BARB ratings data supplied by Attentional