Viewers disappear as 'Lost' mysteries remain

The second season finale of Lost scooped an average 16% audience share and a peak of 3.2 million viewers on Wednesday night, according to early figures.

The first hour of the two-part special averaged 2.9 million viewers, 200,000 above the slot average, at 10pm - but ratings began to drop off an hour later. The second hourmanaged an average of 2.5 million and a 26.5% audience share, with only 2 million hanging on for the climax at 11.45pm

Another US import, Five's CSI: Miami, which aired at 9pm, performed just as well with 2.9 million viewers and a 12.8% audience share. When up against Lost, the following show CSI: NY held up well, managing 2.2 million viewers.

ITV's coverage of Manchester United's Champions League win over Benfica between 7.30pm and 10pm attracted 4.7 million (21.3%), peaking at 9pm with 5.4 million (23.9%).

But it was BBC One that really held its own during the primetime slot. Eastenders at 7.30pm pulled in more than the football, with 8.7 million (43%). Holby City at 8pm continued to keep viewers from switching with 6.6 million (29.9%), and Whistleblower finished the job at 9pm with 3.8 million (17%).