Tony Pitts and Kevin Eldon's elliptical comedy, about a group of "sheddists" who have set up a kind of shed shanty town on a beach, has had a couple of major cast changes since its acclaimed first series. For a start, Eldon's other work commitments precluded him from writing and acting, but Pitts has taken up the writing slack and Stephen Mangan has ably filled the role of Jimmy.

Suranne Jones also found herself too busy to recommit to the role of Diane, but Rosina Carbone is a great replacement. The absurdist humour is still top-notch and well complemented by lyrical narration from Maxine Peake.

Special mention must go to Emma Fryer, whose deranged turn as Deborah, the Gypsy who breaks into song at the drop of a hat is a hoot.

If you think of radio in colour this comedy comes in shades of sepia and charcoal with the occasional bright patch of green. It's also pretty addictive, a floaty tale of people looking for new starts, picking themselves up from failed ones, seeking change and consolation. The writer is Tony Pitts, the cast is superb (it includes Stephen Mangan and Ronnie Ancona), the narrator is Maxine Peake and this is a second series. If you're listening in bed be careful not to drop off as it will slot neatly into a dream.

We're half way through Tony Pitts's blackly comic series, about a strange seaside place where odd people live. At three in the morning someone is screaming. It's the kind of thing that happens in Shedtown down by the bay, where dogs arrive as parcels in the post. It's a bit like Under Milk Wood with touches of Father Ted. And it's curiously addictive, the vivid, dreamlike script given life by a marvellous cast, including Suranne Jones, Ronni Ancona and Johnny Vegas as Colin (a thoughtful melancholic). Tonight: a puppet show about 9/11.

Shedtown, a new programme from Johnny Vegas's production company, was far from ranty: a strange drama/comedy/soundscape, narrated by Maxine Peake, it took advantage of its 11pm slot to offer something much more dreamy and hilarious than the usual wait-for-the-laughter Radio 4 fare. It's about the final works trip for the staff of a failed museum. They go to the seaside. The jokes came in under the radar: "What can I get you?" asked the barmaid. "Peace of mind," said Barry. "I want a pint, me," said Dave. The barmaid talked them through the new menu, which included chicken catch-a-Tory.