The BBC One show peaked at 7.84 million (37%) at around 9.30pm, as the first six couples took to the dancefloor.
Earlier, 3.52 million (20.7%) tuned into The One Show at 7pm and A Question of Sport was seen by 2.73 million (14.6%) viewers at 7.30pm
Still Open all Hours had 2.41 million (12.1%) tune in at 8.30pm while later, The Graham Norton Show attracted 3.3 million (27.6%) at 10.45pm.
Over on ITV at 9pm, 1.45million (6.9%) tuned into John Lydon spill the beans on Piers Morgan's Life Stories.
Gogglebox was once again Channel 4's highest rated show, attracting an average audience of 2.68 million (12.7%). At 8pm 640K (3.2%) tuned in to watch James Corden win £32,000 for charity on James Corden does Deal or No Deal.
At 10pm Alan Carr: Chatty Man attracted 1.1 million (6.6%) viewers.
Gardener's World was BBC Two's highest rated show with 1.98 million (9.9) viewers tuning in.