The Big Brother final was viewed by an average of 1.53 million (8.3%) on Channel 5.
The live finale, which was won by Helen Wood, attracted a peak audience of 1.62 million (9.3%) as the winner was announced.
Follow-up show Big Brother's Bit on the Side was seen by an average of 898k (7.7%) immediately after at 10.45pm.
BBC One's Boomers was the evening's highest-rated show outside of soaps, pulling in an average of 4.45 million (21.9%) at 9pm. The new comedy series, which stars Philip Jackson, Alison Steadman and Russ Abbot, peaked with 4.47 million.
BBC One's evening started with 2.27 million (13.2%) for The One Show at 7pm, followed by 2.10 million (11.3%) for A Question of Sport and 2.35 million (11.4%) for Scrappers at 8.30pm.
Later in the evening, Room 101 and Would I Lie to You? The Unseen Bits were seen by 2.08 million (15.3%) and 1.47 million (14%) respectively.
After a bumper evening of athletics, BBC Two's night kicked off with 2.02 million (9.9%) for The Great British Bake Off: An Extra Slice at 9pm, followed by 1.82 million (9.6%) for Sweets Made Simple at 9.30pm.
With an average audience of 2.27 million (11.9%), The Dales was ITV's highest-rated show outside of soaps, narrowly beating Doc Martin with 2.12 million (10.8%).
Over on Channel 4, The Million Pound Drop was seen by 800k (4%), The Singer Takes it All was watched by 780k (4%), while The Last Leg pulled in 980k (6.1%).
Family Guy was among the highest-rated multichannel shows, peaking with 803k (13%) just after midnight.
