After last night's preview screening at the BFI, the BBC have released a number of pictures from 7.1: Asylum of the Daleks.
Asylum of the Daleks will air on Saturday 1st September on BBC One with the time to be confirmed. BBC America schedules are showing a 2 hour time-slot on Saturday 1st September between 8:00pm-10:00pm, with 7.X: The Doctor, The Widow and The Wardrobe scheduled for 8:00pm. Therefore, it is strongly believed that Asylum of the Daleks will air at 9:00pm on the channel.
[Source: BBC America; BFI]