This week, Syfy found that in a post-apocalyptic world, the appliance of defiance brings riches, as the channel’s newest import landed with a thump.

Elsewhere, repeats helped more talent, 17thcentury letters were explored and Oliver Stone delivered his version of history.

On Tuesday at 9pm, Syfy launched US drama Defiance to 254,000/1.3%; well above its slot average. With four repeats, the first episode totalled 590,000.

As BBC1’s The Voice moved later on Saturday, ITV2’s Britain’s Got More Talent at 8.30pm experienced a slight drop: its 1.1 million/ 5% was 160,000 behind last week. However, Sunday’s repeat (929,000/ 5%) regained most of those.

The second episode of BBC4’s The History That Wrote Itself achieved 311,000/1.4% on Wednesday at 9pm, level with last week’s opener. Over on Sky Atlantic, Oliver Stone’s Untold History Of The United States averaged 64,000/0.3% on Friday at 9pm.