Sky1 continues its love affair with the fantasy world of Terry Pratchett with this lavishly put-together and thoroughly entertaining two-part adaptation of another of his Discworld comic novels. Coupling's Richard Coyle is low-rent conman Moist von Lipwig, who is saved from the scaffold to revive Ankh-Morpork's moribund post office. It's a poisoned chalice (he has serious competition from a rival company), and Moist's attempts to escape are regularly thwarted by both a clay creature called Mr Pump (like Marvin the Paranoid Android, without the doom-laden introspection) and Moist's own growing feelings for the equally theatrically named deposed heiress Adora Belle Dearheart (Claire Foy). The story fairly rattles along with a host of well-known faces adding extra colour, the special effects are neatly integrated, and there are some distinctly spooky little touches to add a frisson of fear. Concludes tomorrow.

Sky may not have the resources to churn out top home-grown drama on a routine basis, but when it does decide to throw its weight behind a production, as it's done for this latest Terry Pratchett Discworld adventure, then it certainly does it in style.

Shot in HD, and with a fabulous British cast that includes David Suchet, Richard Coyle, Charles Dance, Claire Foy, Andrew Sachs, Steve Pemberton and Tamsin Greig, this Bank Holiday two-parter (concluding at the same time tomorrow) is a typically outlandish Pratchett tale about a lifelong con man who's given one last chance to avert the death sentence. The deal? He must take on the seemingly cursed task of trying to rescue Discworld's Post Office, under threat from their equivalent of the internet.

Sky's third venture into the cult fantasy world of Terry Pratchett (after Hogfather and The Colour of Magic), Going Postal again does justice to the author's peculiar vision. The weirdness of Discworld is appropriately captured in a tale of love and redemption which blends satire, humour and drama. It tells of a con artist, Moist von Lipwig (Richard Coyle), forced to atone for his crimes by taking the cursed role of postmaster at the dilapidated Ankh-Morpork's post office. The job puts him in the firing line of Reacher Gilt (David Suchet), who runs a rival delivery service, but also leads to an encounter with Adora Belle Dearheart (Claire Foy). Concludes tomorrow.

Going Postal: Claire Foy on Adora Belle Dearheart

Claire Foy tells us about complex nature of her character Adora Belle Dearheart and working with leading man Richard Coyle on the set of Sky 1 HD's latest Terry Pratchett film - Going Postal.