If you're a Doctor Who fan, then you might want to listen carefully to next week's episode of BBC crime drama Shetland.
Episode five of the whodunit?, starring Douglas Henshall as Detective Inspector Jimmy Perez, is set to feature a sneaky uncredited audio-cameo from the twelfth Doctor, Peter Capaldi; who will be treating viewers to the unmistakable sound of his voice via a radio weather forecast.
Adapted from the novels by Ann Cleeves, the detective drama follows DI Perez's murder investigations on the Shetland Islands. It's also executive produced by Peter Capaldi's wife, Elaine Collins - which, no doubt, explains the surprise.
Episode four of Shetland airs tonight on BBC1 at 9pm.