'Talent', 'Primeval' help ITV1 win Saturday

ITV1 had a convincing lead in the ratings on Saturday night, almost doubling the audience of BBC One.

The final auditions show of Britain's Got Talent was by far the most watched programme of the night, with an average of 11.62m (51.1%) between 8.20pm and 9.50pm.

In the hour before Talent, the penultimate episode of Primeval managed a respectable 4.49m (24.8%). The sci-fi drama beat the final episode of John Barrowman's Tonight's The Night, which took 3.99m (22%) for BBC One between 7.20pm and 8.15pm.

The National Lottery - 1 vs 100 had 3.26m (15.1%), then the draw itself delivered 3.97m (17.6%). The latest episode of Casualty put in 4m (17.3%) between 9.05pm and 9.55pm.

Earlier, Robin Hood drew an unspectacular 3.11m (19.3%) between 6.35pm and 7.20pm.

The final instalment of BBC Two's RHS Chelsea Flower Show had 1.88m (9.2%) from 7.50pm, then documentary The Birth Of British Music - this week focusing on Austrian composer Joseph Haydn - interested 810k (3.5%).

Channel 4's Born Survivor: Bear Grylls appealed to just 560k (2.6%) in the 8pm hour, after which a rerun of Robert Carlyle drama Hitler: The Rise Of Evil took 1.09m (5.3%).

On Five, an NCIS double bill attracted 773k (3.6%) and 893k (3.8%) from 8.05pm, then a new CSI: NY grew the audience to 2.01m (11.3%). Law & Order closed off prime with 1.09m (9.7%).

ITV1 averaged a massive 33.7% share in primetime overall, around twice BBC One's 17%. BBC Two was third with 7.9%, followed by Five with 6.7% and Channel 4 with 3.8% (+1: 0.5%).

Spinoff show Britain's Got More Talent was the most watched multichannel programme of the day, with 1.26m (7.5%) for ITV2 from 9.50pm. ITV2+1's repeat added 106k (1%).

Ratings data supplied by Attentional