Both series aired their final competition and results shows separately on Saturday night.
The early Talent show, from 6.50pm to 8.30pm, drew an average of 11m, or 51% of the TV audience, and peaked with 13m viewers. The results show, over 30 minutes from 9.30pm, was even more popular, averaging 13.1m (55%) and peaking at 14.4m.
Final performances on I'd Do Anything, in an earlier 6pm slot, were watched by 5.1m (32%) over an hour. Results for the BBC One show, from 8.45pm to 9.15pm, attracted 6.9m (32%).
> George Sampson wins 'Britain's Got Talent'
> Jodie Prenger wins 'I'd Do Anything'