The 9pm episode, which saw Fry return as Dr. Gordon Wyatt in the Sky1 show, was up 38,000 viewers compared to last week's performance.
Also on the multichannel stations, Katie & Peter: Stateside took 1.16m (5.8%) for ITV2 at 9pm, with a further 236k (1.5%) tuning in on ITV2+1.
The penultimate episode of The Inbetweeners performed well for E4, pulling in 905k (5.3%) at 10pm. An additional 214k (2.2%) watched the teen comedy on E4+1.
Elsewhere, My Family put in 5.2m (25.2%) for BBC One at 8pm. The audience then fell to 4.42m (20.6%) during the 8.30pm screening of DIY SOS. Crimewatch saw the channel's figures drop further to 3.97m (17.8%) during the 9pm hour.
BBC Two's World Snooker, the live world championship coverage from Sheffield, was seen by 1.48m (7.3%) between 7pm and 9pm, then 1.1m (5%) tuned in for the third part of Professor Regan's... at 9pm.
The Bill averaged 4.35m (20.7%) for ITV1 during the 8pm hour, and 4.3m (19.3%) watched the 9pm screening of Taggart.
Over on Channel 4, Kirstie's Home-made Home interested 1.99m (9.5%) at 8pm. A disappointing 800k stayed with the channel for the 9pm airing of My Wall Street, a Cutting Edge documentary which followed the fortunes of Wall Street residents.
Five's I Own Britain's Best Home managed 726k (3.5%) at 8pm, then 2.18m (9.8%) stayed with the channel at 9pm for The Mentalist.
Overall, BBC One came top during primetime with an average share of 23.6% to ITV1's 19.2%. BBC Two was third with 6.3%, followed by Channel 4 with 5.3% (+1: 0.7%) and Five's 5.2%.
Ratings data supplied by Attentional