The 9pm show, which saw Nicola McLean triumph against Sandra Dickinson, Phil Turner and East 17's Terry Coldwell in the title of best wedding, pulled in 433k (2%).
Also on the multichannel stations, 269k (1.2%) tuned in for the latest One Tree Hill episode at 9pm on E4.
Elsewhere, 9/11: 102 Minutes That Changed America pulled in 2.82m (13.7%) for Channel 4. The show, which featured footage and audiotape recorded by New Yorkers on the day of the attack, aired between 9pm and 11.10pm, coming in third place during the 9pm hour.
Caroline Quentin's ITV1 series Blue Murder returned to a strong 5.03m (21.2%) but was beaten by BBC One's Waking The Dead which, logging 6.13m (25.8%), came first during the hour.
Also at 9pm, The Restaurant: Winners' Story had 1.57m (6.6%) for BBC Two, while Five's Warship took 969k (4.1%).
Earlier, at 8pm, Channel 4's Dispatches: Battle Scarred put in a lowly 460k (2%), and 1.23m (5.4%) tuned in for
Over on BBC Two, the half-hour University Challenge managed 2.82m (12.5%) at 8pm. Caribbean Food Made Easy - hosted by Levi Roots - followed, bringing in 1.89m (8.2%).
BBC One's Panorama had 3.42m (14.8%) between 8.30pm and 9pm, and 3.6m (16.1%) watched ITV1's half-hour Gran Scammers Exposed: Tonight at 8pm.
Overall, ITV1 came top during primetime with an average share of 25% to BBC One's 22.8%. Channel 4 was third with 8% (+1: 0.8%), followed by BBC Two with 7.3% and Five's 3.9%.
BARB ratings data supplied by Attentional